|Coordinates: 50°47′N 6°5′E / 50.783°N 6.083°ECoordinates: 50°47′N 6°5′E / 50.783°N 6.083°E|
|• Lord Mayor||Marcel Philipp (CDU)|
|• Governing parties||CDU / SPD|
|• Total||160.85 km2 (62.10 sq mi)|
|• Density||1,500/km2 (4,000/sq mi)|
|Time zone||CET/CEST (UTC+1/+2)|
|Dialling codes||0241 / 02405 / 02407 / 02408|
|Vehicle registration||AC / MON|
Aachen (German pronunciation: [ˈʔaːxn̩]) or Bad Aachen, traditionally known in English and French as Aix-la-Chapelle //, is a spa and border town in North Rhine-Westphalia, Germany. Aachen was a residence of Charlemagne, and later the coronation place for German kings.
Aachen is the westernmost city in Germany, located near the borders with Belgium and the Netherlands, 61 km (38 mi) west-southwest of Cologne in a former coal-mining area. RWTH Aachen University is in the city. Aachen's industries include science, engineering and information technology. In 2009, Aachen was ranked eighth among cities in Germany for innovation.
The name "Aachen" is a modern descendant, like southern German Ach(e), Aach, meaning "river" or "stream", from Old High German ahha, meaning "water" or "stream", which directly translates (and etymologically corresponds to) Latin Aquae, referring to the springs. The location has been inhabited by humans since the Neolithic era, about 5,000 years ago, attracted to its warm mineral springs. Latin Aquae figures in Aachen's Roman name Aquae granni, which meant "waters of Grannus", referring to the Celtic god of healing who was worshipped at the springs. This word became Åxhe in Walloon and Aix in French, and subsequently Aix-la-Chapelle after Charlemagne had a cathedral built there in the late eighth century and then made the city his empire's capital.
Aachen's name in French and German evolved in parallel. The city is known by a variety of different names in other languages:
|Language||Name||Pronunciation in IPA|
|Dutch / Low German||Aken||[ˈaːkən]|
|Latin||Aquisgrana, Aquae granni Aquis Granum|
Aachen is at the western end of the Benrath line that divides High German to the south from the rest of the West Germanic speech area to the north. Aachen's local dialect is called Öcher Platt and belongs to the Ripuarian language.
Flint quarries on the Lousberg, Schneeberg, and Königshügel, first used during Neolithic times (3,000–2,500 b.c.), attest to the long occupation of the site of Aachen, as do recent finds under the modern city's Elisengarten pointing to a former settlement from the same period. Bronze Age (ca. 1600 b.c.) settlement is evidenced by the remains of barrows (burial mounds) found, for example, on the Klausberg. During the Iron Age, the area was settled by Celtic peoples who were perhaps drawn by the marshy Aachen basin's hot sulphur springs where they worshipped Grannus, god of light and healing.
Later, the 25-hectare Roman spa resort town of Aquae Granni was, according to legend, founded by Grenus, under Hadrian, in ca. a.d. 124. Instead, the fictitious founder refers to the Celtic god, and it seems it was the Roman 6th Legion at the start of the 1st century that first channelled the hot springs into a spa at Büchel, adding at the end of the same century the Münstertherme spa, two water pipelines, and a likely sanctuary dedicated to Grannus. A kind of forum, surrounded by colonnades, connected the two spa complexes. There was also an extensive residential area, part of it inhabited by a flourishing Jewish community. The Romans built bathhouses near Burtscheid. A temple precinct called Vernenum was built near the modern Kornelimünster/Walheim. Today, remains have been found of three bathhouses, including two fountains in the Elisenbrunnen and the Burtscheid bathhouse.
Roman civil administration fell apart in Aachen between the end of the 4th and beginning of the 5th centuries. Rome withdrew its troops from the area but the town remained populated. By 470, the town came to be ruled by the Ripuarian Franks and subordinated to their capital, Cologne.
After Roman times, Pepin the Short had a castle residence built in the town, due to the proximity of the hot springs and also for strategic reasons as it is located between the Rhineland and northern France. Einhard mentions that in 765–6 Pepin spent both Christmas and Easter at Aquis villa ("Et celebravit natalem Domini in Aquis villa et pascha similiter."), which must have been sufficiently equipped to support the royal household for several months. In the year of his coronation as king of the Franks, 768, Charlemagne came to spend Christmas at Aachen for the first time. He went on to remain there in a mansion which he may have extended, although there is no source attesting to any significant building activity at Aachen in his time, apart from the building of the Palatine Chapel in Aachen (since 1929, cathedral) and the palatial presentation halls. Charlemagne spent most winters in Aachen between 792 and his death in 814. Aachen became the focus of his court and the political centre of his empire. After his death, the king was buried in the church which he had built; his original tomb has been lost, while his alleged remains are preserved in the shrine where he was reburied after being declared a saint; his saintliness, however, was never very widely acknowledged.
In 936, Otto I was crowned king of East Francia in the collegiate church built by Charlemagne. While Otto II ruled, the nobles revolted and the West Franks, under Lothair, raided Aachen in the ensuing confusion. Aachen was attacked again, this time by Odo of Champagne who attacked the imperial palace while Conrad was absent. Odo relinquished it quickly and was killed soon thereafter. The palace and town of Aachen received fortifying walls by order of Emperor Frederick Barbarossa between 1172 and 1176. Over the next 500 years, most kings of Germany destined to reign over the Holy Roman Empire were crowned in Aachen. The original audience hall built by Charlemagne was torn down and replaced by the current city hall in 1330. The last king to be crowned here was Ferdinand I in 1531. During the Middle Ages, Aachen remained a city of regional importance, due to its proximity to Flanders, achieving a modest position in the trade in woollen cloths, favoured by imperial privilege. The city remained a free imperial city, subject to the emperor only, but was politically far too weak to influence the policies of any of its neighbours. The only dominion it had was over Burtscheid, a neighbouring territory ruled by a Benedictine abbess. It was forced to accept that all of its traffic must pass through the "Aachener Reich". Even in the late 18th century the Abbess of Burtscheid was prevented from building a road linking her territory to the neighbouring estates of the duke of Jülich; the city of Aachen even deployed its handful of soldiers to chase away the road-diggers.
As an imperial city, Aachen held certain political advantages that allowed it to remain independent of the troubles of Europe for many years. It remained a direct vassal of the Holy Roman Empire throughout most of the Middle Ages. It also was the site of many important church councils. These included the council of 837, and the council of 1166, a council convened by the antipope Paschal III.
Aachen has proved an important site for the production of historical manuscripts. Under Charlemagne's purview, both the Ada Gospels and the Coronation Gospels may have been produced in Aachen. In addition, quantities of the other texts in the court library were also produced locally. During the reign of Louis the Pious (814–840), substantial quantities of ancient texts were produced at Aachen, including legal manuscripts such as the (leges scriptorium group), patristic texts including the five manuscripts of the Bamberg Pliny Group. Finally, under Lothair I (840–855), texts of outstanding quality were still being produced. This however marked the end of the period of manuscript production at Aachen.
In 1598, following the invasion of Spanish troops from the Netherlands, Rudolf deposed all Protestant office holders in Aachen and even went as far as expelling them from the city. From the early 16th century, Aachen started losing its power and influence. It started with the crowning of emperors occurring not in Aachen but in Frankfurt, followed by the religious wars, and the great fire of 1656. After the destruction of most of the city in 1656, the majority of the rebuilding utilised the Baroque style. It then culminated in 1794, when the French, led by General Charles Dumouriez, occupied Aachen.
Aachen became attractive as a spa by the middle of the 17th century, not so much because of the effects of the hot springs on the health of its visitors but because Aachen was then – and remained well into the 19th century – a place of high-level prostitution in Europe. Traces of this hidden agenda of the city's history are found in the 18th-century guidebooks to Aachen as well as to the other spas; the main indication for visiting patients, ironically, was syphilis; only by the end of the 19th century had rheumatism become the most important object of cures at Aachen and Burtscheid. Aachen was chosen as the site of several important congresses and peace treaties: the first congress of Aachen (often referred to as the Congress of Aix-la-Chapelle in English) on 2 May 1668, leading to the First Treaty of Aachen in the same year which ended the War of Devolution. The second congress ended with the second treaty in 1748, ending the War of the Austrian Succession. In 1789, there was a constitutional crisis within the Aachen government, and in 1794 Aachen lost its status as a free imperial city.
On 9 February 1801, the Peace of Lunéville removed the ownership of Aachen and the entire "left bank" of the Rhine from Germany and granted it to France. In 1815, control of the town was passed to Prussia, by an act that was passed by the Congress of Vienna. The third congress took place in 1818 to decide the fate of occupied Napoleonic France.
By the middle of the 19th century, industrialisation swept away most of the city's medieval rules of production and commerce, although the entirely corrupt remains of the city's medieval constitution were kept in place (compare the famous remarks of Georg Forster in his Ansichten vom Niederrhein) until 1801, when Aachen became the "chef-lieu du département de la Roer" in Napoleon's First French Empire. In 1815 after the Napoleonic Wars, the Kingdom of Prussia took over and the city became one of its most socially and politically backward centres until the end of the 19th century. Administered within the Rhine Province, by 1880 the population was 80,000. Starting in 1838, the railway from Cologne to Belgium passed through Aachen. The city suffered extreme overcrowding and deplorable sanitary conditions up to 1875 when the medieval fortifications were finally abandoned as a limit to building operations and new, less miserable quarters were built in the eastern part of the city, where drainage of waste liquids was easiest. In December 1880, the Aachen tramway network was opened, and in 1895 it was electrified. In the 19th century and up to the 1930s, the city was important for the production of railway locomotives and carriages, iron, pins, needles, buttons, tobacco, woollen goods, and silk goods.
After World War I, Aachen was occupied by the Allies until 1930. Aachen was one of the locations involved in the ill-fated Rhenish Republic. On 21 October 1923 an armed band took over the city hall. Similar actions took place in Mönchen-Gladbach, Duisburg, and Krefeld. This republic lasted only about a year. Aachen was heavily damaged during World War II. The city and its fortified surroundings were laid siege to from 12 September to 21 October 1944 by the US 1st Infantry Division with the 3rd Armored Division assisting from the south. Around 13 October the US 2nd Armored Division played their part, coming from the north and getting as close as Würselen, while the 30th Infantry Division played a crucial role in completing the encirclement of Aachen on 16 October 1944. With reinforcements from the US 28th Infantry Division the Battle of Aachen then continued involving direct assaults through the heavily defended city, which finally forced the German garrison to surrender on 21 October 1944. Aachen was the first German city to be captured by the Allies, and its residents welcomed the soldiers as liberators. The city was destroyed partially – and in some parts completely – during the fighting, mostly by American artillery fire and demolitions carried out by the Waffen-SS defenders. Damaged buildings included the medieval churches of St. Foillan, St. Paul and St. Nicholas, and the Rathaus (city hall), although Aachen Cathedral was largely unscathed. Only 4,000 inhabitants remained in the city; the rest had followed evacuation orders. Its first Allied-appointed mayor, Franz Oppenhoff, was assassinated by an SS commando unit.
History of Aachen Jews
During the Roman period, Aachen was the site of a flourishing Jewish community. Later, during the Carolingian empire, a Jewish community was found near the royal palace. In 802, a Jew named Isaac accompanied the ambassador of Charlemagne to Harun al-Rashid. During the 13th century, many Jews converted to Christianity, as shown in the records of the Church of St. Mary. In 1486, the Jews of Aachen offered gifts to Maximilian I during his coronation ceremony. In 1629, the Aachen Jewish community was expelled from the city. In 1667, six Jews were allowed to return. Most of the Aachen Jews settled in the nearby town of Burtscheid. On 16 May 1815, the Jewish community of the city offered an homage in its synagogue to the Prussian king, Friedrich Wilhelm III. A Jewish cemetery was acquired in 1851. 1,345 Jews lived in the city in 1933. The synagogue was destroyed during Kristallnacht in 1938. In 1939, after emigration and arrests, 782 Jews remained in the city. After World War II, only 62 Jews lived there. In 2003, 1,434 Jews were living in Aachen. In Jewish texts, the city of Aachen was called Aish, or Ash (אש).
The city of Aachen has developed into a technology hub as a by-product of hosting one of the leading universities of technology in Germany with the RWTH Aachen (Rheinisch-Westfälische Technische Hochschule), known especially for mechanical engineering, automotive and manufacturing technology as well as for its research and academic hospital Klinikum Aachen, one of the largest medical facilities in Europe.
Aachen is located in the middle of the Meuse–Rhine Euroregion, close to the border tripoint of Germany, the Netherlands, and Belgium. The city of Heerlen in the Netherlands lies nearby, as does Eupen, the capital of the German-speaking Community of Belgium, both located about 20 km (12.4 mi) from Aachen's city centre. Aachen lies near the head of the open valley of the River Wurm (which today flows through the city in canalised form), part of the larger basin of the River Meuse, and about 30 km (19 mi) north of the High Fens, which form the northern edge of the Eifel uplands of the Rhenish Massif.
The maximum dimensions of the city's territory are 21.6 km (13.4 mi) from north to south, and 17.2 km (10.7 mi) from east to west. The city limits are 87.7 km (54.5 mi) long, of which 23.8 km (14.8 mi) border Belgium and 21.8 km (13.5 mi) the Netherlands. The highest point in Aachen, located in the far southeast of the city, lies at an elevation of 410 m above sea level. The lowest point, in the north, and on the border with the Netherlands, is at 125 m.
As the westernmost city in Germany (and close to the Low Countries), Aachen and the surrounding area belongs to a temperate climate zone, with humid weather, mild winters, and warm summers. Because of its location north of the Eifel and the High Fens and its subsequent prevailing westerly weather patterns, rainfall in Aachen (on average 805 mm/year) is comparatively higher than, for example, in Bonn (with 669 mm/year). Another factor in the local weather forces of Aachen is the occurrence of Foehn winds on the southerly air currents, which results from the city's geographic location on the northern edge of the Eifel.
Because the city is surrounded by hills, it suffers from inversion-related smog. Some areas of the city have become urban heat islands as a result of poor heat exchange, both because of the area's natural geography and from human activity. The city's numerous cold air corridors, which are slated to remain as free as possible from new construction, therefore play an important role in the urban climate of Aachen.
The January average is 3.0 °C (37 °F), while the July average is 18.5 °C (65 °F). Precipitation is almost evenly spread throughout the year.
|Climate data for Aachen, Germany for 1981–2010 (Source: DWD)|
|Record high °C (°F)|| 16.2
|Average high °C (°F)|| 5.4
|Daily mean °C (°F)|| 3.0
|Average low °C (°F)|| 0.7
|Record low °C (°F)|| −16.4
|Average precipitation mm (inches)|| 68.1
|Mean monthly sunshine hours||63.5||83.0||119.3||163.4||195.6||196.6||208.5||195.7||149.3||120.4||71.0||50.2||1,616.5|
|Source: Data derived from Deutscher Wetterdienst|
The geology of Aachen is very structurally heterogeneous. The oldest occurring rocks in the area surrounding the city originate from the Devonian period and include carboniferous sandstone, graywacke, claystone and limestone. These formations are part of the Rhenish Massif, north of the High Fens. In the Pennsylvanian subperiod of the Carboniferous geological period, these rock layers were narrowed and folded as a result of the Variscan orogeny. After this event, and over the course of the following 200 million years, this area has been continuously flattened.
During the Cretaceous period, the ocean penetrated the continent from the direction of the North Sea up to the mountainous area near Aachen, bringing with it clay, sand, and chalk deposits. While the clay (which was the basis for a major pottery industry in nearby Raeren) is mostly found in the lower areas of Aachen, the hills of the Aachen Forest and the Lousberg were formed from upper Cretaceous sand and chalk deposits. More recent sedimentation is mainly located in the north and east of Aachen and was formed through tertiary and quaternary river and wind activities.
Along the major thrust fault of the Variscan orogeny, there are over 30 thermal springs in Aachen and Burtscheid. Additionally, the subsurface of Aachen is traversed by numerous active faults that belong to the Rurgraben fault system, which has, in the past, been responsible for numerous earthquakes, including the 1756 Düren Earthquake and the 1992 Roermond earthquake, which was the strongest earthquake ever recorded in the Netherlands.
The unemployment rate in the city is, as of April 2012, 9.7 percent. At the end of 2009, the foreign-born residents of Aachen made up 13.6 percent of the total population. A significant portion of foreign residents are students at RWTH Aachen University.
|Largest groups of foreign residents|
The city is divided into seven administrative districts, or boroughs, each with its own district council, district leader, and district authority. The councils are elected locally by those who live within the district, and these districts are further subdivided into smaller sections for statistical purposes, with each sub-district named by a two-digit number.
The districts of Aachen, including their constituent statistical districts, are:
- Aachen-Mitte: 10 Markt, 13 Theater, 14 Lindenplatz, 15 St. Jakob, 16 Westpark, 17 Hanbruch, 18 Hörn, 21 Ponttor, 22 Hansemannplatz, 23 Soers, 24 Jülicher Straße, 25 Kalkofen, 31 Kaiserplatz, 32 Adalbertsteinweg, 33 Panneschopp, 34 Rothe Erde, 35 Trierer Straße, 36 Frankenberg, 37 Forst, 41 Beverau, 42 Burtscheid Kurgarten, 43 Burtscheid Abbey, 46 Burtscheid Steinebrück, 47 Marschiertor, 48 Hangeweiher
- Brand: 51 Brand
- Eilendorf: 52 Eilendorf
- Haaren: 53 Haaren (including Verlautenheide)
- Kornelimünster/Walheim: 61 Kornelimünster, 62 Oberforstbach, 63 Walheim
- Laurensberg: 64 Vaalserquartier, 65 Laurensberg
- Richterich: 88 Richterich
Regardless of official statistical designations, there are 50 neighbourhoods and communities within Aachen, here arranged by district:
- Aachen-Mitte: Beverau, Bildchen, Burtscheid, Forst, Frankenberg, Grüne Eiche, Hörn, Lintert, Pontviertel, Preuswald, Ronheide, Rosviertel, Rothe Erde, Stadtmitte, Steinebrück, West
- Brand: Brand, Eich, Freund, Hitfeld, Niederforstbach
- Eilendorf: Eilendorf, Nirm
- Haaren: Haaren, Hüls, Verlautenheide
- Kornelimünster/Walheim: Friesenrath, Hahn, Kitzenhaus, Kornelimünster, Krauthausen, Lichtenbusch, Nütheim, Oberforstbach, Sief, Schleckheim, Schmithof, Walheim
- Laurensberg: Gut Kullen, Kronenberg, Laurensberg, Lemiers, Melaten, Orsbach, Seffent, Soers, Steppenberg, Vaalserquartier, Vetschau
- Richterich: Horbach, Huf, Richterich
The following cities and communities border Aachen, clockwise from the northwest: Herzogenrath, Würselen, Eschweiler, Stolberg and Roetgen (which are all in the district of Aachen); Raeren, Kelmis and Plombières (Lüttich Province in Belgium) as well as Vaals, Gulpen-Wittem, Simpelveld, Heerlen and Kerkrade (all in Limburg Province in the Netherlands).
Aachen Cathedral was erected on the orders of Charlemagne in AD 796 and was, on completion, in 798, the largest cathedral north of the Alps. It was modelled after the Basilica of San Vitale, in Ravenna, Italy, and was built by Odo of Metz. Charlemagne also desired for the chapel to compete with the Lateran Palace, both in quality and authority. It was originally built in the Carolingian style, including marble covered walls, and mosaic inlay on the dome. On his death, Charlemagne's remains were interred in the cathedral and can be seen there to this day. The cathedral was extended several times in later ages, turning it into a curious and unique mixture of building styles. The throne and gallery portion date from the Ottonian, with portions of the original opus sectile floor still visible. The 13th century saw gables being added to the roof, and after the fire of 1656, the dome was rebuilt. Finally, a choir was added around the start of the 15th century After, Frederick Barbarossa canonised Charlemagne, in 1165, the chapel became a destination for pilgrims. For 600 years, from 936 to 1531, Aachen Cathedral was the church of coronation for 30 German kings and 12 queens. The church built by Charlemagne is still the main attraction of the city. In addition to holding the remains of its founder, it became the burial place of his successor Otto III. In the upper chamber of the gallery, Charlemagne's marble throne is housed. Aachen Cathedral has been designated as a UNESCO World Heritage Site.
Most of the marble and columns used in the construction of the cathedral were brought from Rome and Ravenna, including the sarcophagus that Charlemagne was eventually laid to rest in. A bronze bear from Gaul was placed inside, along with an equestrian statue from Ravenna, believed to be Theodric. These were in contrast to a wolf and a statue of Marcus Aurelius in the Capitoline. Bronze pieces such as the doors and railings were cast in a local foundry, some of which have survived to the present. Finally, there is uncertainty surrounding the bronze pine cone in the chapel, and where it was created. Wherever it was made, it was also a parallel to a piece in Rome, this in Old St. Peter's Basilica.
Aachen Cathedral Treasury has housed, throughout its history, a collection of liturgical objects. The origin of this church treasure is in dispute as some say Charlemagne himself endowed his chapel with the original collection, while the rest were collected over time. Others say all of the objects were collected over time, from such places as Jerusalem and Constantinople. The location of this treasury has moved over time and was unknown until the 15th, century when it was located in the Matthiaskapelle (St. Matthew's Chapel) until 1873, when it was moved to the Karlskapelle (Charles' Chapel). From there it was moved to the Hungarian Chapel in 1881 and in 1931 to its present location next to the Allerseelenkapelle (Poor Souls' Chapel). Only six of the original Carolingian objects have remained, and of those only three are left in Aachen: the Aachen Gospels, a diptych of Christ, and an early Byzantine silk. The Coronation Gospels and a reliquary burse of St. Stephen were moved to Vienna in 1798 and the Talisman of Charlemagne was given as a gift in 1804 to Josephine Bonaparte and subsequently to Rheims Cathedral. 210 documented pieces have been added to the treasury since its inception, typically to receive in return legitimisation of linkage to the heritage of Charlemagne. The Lothar Cross, the Gospels of Otto III and multiple additional Byzantine silks were donated by Otto III. Part of the Pala d'Oro and a covering for the Aachen Gospels were made of gold donated by Henry II. Frederick Barbarossa donated the candelabrum that adorns the dome and also once "crowned" the Shrine of Charlemagne, which was placed underneath in 1215. Charles IV donated a pair of reliquaries. Louis XI gave, in 1475, the crown of Margaret of York, and, in 1481, another arm reliquary of Charlemagne. Maximilian I and Charles V both gave numerous works of art by Hans von Reutlingen. Continuing the tradition, objects continued to be donated until the present, each indicative of the period of its gifting, with the last documented gift being a chalice from 1960 made by Ewald Mataré.
The Aachen Rathaus, English Aachen City Hall or Aachen Town Hall, dated from 1330, lies between two central squares, the Markt (marketplace) and the Katschhof (between city hall and cathedral). The coronation hall is on the first floor of the building. Inside you can find five frescoes by the Aachen artist Alfred Rethel which show legendary scenes from the life of Charlemagne, as well as Charlemagne's signature. Also, precious replicas of the Imperial Regalia are kept here.
Since 2009, the city hall has been a station on the Route Charlemagne, a tour programme by which historical sights of Aachen are presented to visitors. At the city hall, a museum exhibition explains the history and art of the building and gives a sense of the historical coronation banquets that took place there. A portrait of Napoleon from 1807 by Louis-André-Gabriel Bouchet and one of his wife Joséphine from 1805 by Robert Lefèvre are viewable as part of the tour.
As before, the city hall is the seat of the mayor of Aachen and of the city council, and annually the Charlemagne Prize is awarded there.
The Grashaus, a late medieval house at the Fischmarkt, is one of the oldest non-religious buildings in downtown Aachen. It hosted the city archive, and before that, the Grashaus was the former city hall until the present building took over this function.
The Elisenbrunnen is one of the most famous sights of Aachen. It is a neo-classical hall covering one of the city's famous fountains. It is just a minute away from the cathedral. Just a few steps in a south-easterly direction lies the 19th-century theatre.
Also of note are two remaining city gates, the Ponttor (Pont gate), half a mile northwest of the cathedral, and the Marschiertor (marching gate), close to the central railway station. There are also a few parts of both medieval city walls left, most of them integrated into more recent buildings, but some others still visible. There are even five towers left, some of which are used for housing.
St. Michael's Church, Aachen was built as a church of the Aachen Jesuit Collegium in 1628. It is attributed to the Rhine mannerism and a sample of a local Renaissance-architecture. The rich façade remained unfinished until 1891 when the historistic architect Peter Friedrich Peters added to it. The church is a Greek Orthodox church today, but the building is used also for concerts because of its good acoustics.
The Jewish synagogue in Aachen which was destroyed on the Night of Broken Glass (Kristallnacht), 9 November 1938, was reinaugurated on 18 May 1995. One of the contributors for the reconstructions of the synagogue was Jürgen Linden, the Lord Mayor of Aachen from 1989 to 2009.
There are numerous other notable churches and monasteries, a few remarkable 17th- and 18th-century buildings in the particular Baroque style typical of the region, a Jewish synagogue, a collection of statues and monuments, park areas, cemeteries, among others. Among the museums in the town are the Suermondt-Ludwig Museum, which has a fine sculpture collection and the Aachen Museum of the International Press, which is dedicated to newspapers from the 16th century to the present. The area's industrial history is reflected in dozens of 19th- and early 20th-century manufacturing sites in the city.
Elisenbrunnen in Aachen
Carolus Thermen, thermal baths named after Charlemagne
A statue commemorating David Hansemann
There have been a number of spin-offs from the university's IT technology department.
Products manufactured in Aachen include electrical goods, textiles, foodstuffs (chocolate and candy), glass, machinery, rubber products, furniture, metal products. Also in and around Aachen is the production of chemicals, plastics, cosmetics, and needles and pins. Though once a major player in Aachen's economy, today glassware and textile production make up only 10% of total manufacturing jobs in the city.
The local speciality of Aachen is an originally hard type of sweet bread, baked in large flat loaves, called Aachener Printen. Unlike Lebkuchen, a German form of gingerbread sweetened with honey, Printen use a syrup made from sugar. Today, a soft version is sold under the same name which follows an entirely different recipe.
RWTH Aachen University, established as Polytechnicum in 1870, is one of Germany's Universities of Excellence with strong emphasis on technological research, especially for electrical and mechanical engineering, computer sciences, physics, and chemistry. The university clinics attached to the RWTH, the Klinikum Aachen, is the biggest single-building hospital in Europe. Over time, a host of software and computer industries have developed around the university. It also maintains a botanical garden (the Botanischer Garten Aachen).
FH Aachen, Aachen University of Applied Sciences (AcUAS) was founded in 1971. The AcUAS offers a classic engineering education in professions like mechatronics, construction engineering, mechanical engineering or electrical engineering. German and international students are educated in more than 20 international or foreign-oriented programs and can acquire German as well as international degrees (Bachelor/Master) or Doppelabschlüsse (double degrees). Foreign students account for more than 21% of the student body.
The Katholische Hochschule Nordrhein-Westfalen – Abteilung Aachen (Catholic University of Applied Sciences Northrhine-Westphalia – Aachen department) offers its some 750 students a variety of degree programmes: social work, childhood education, nursing, and co-operative management. It also has the only programme of study in Germany especially designed for mothers.
The Hochschule für Musik und Tanz Köln (Cologne University of Music) is one of the world's foremost performing arts schools and one of the largest music institutions for higher education in Europe with one of its three campuses in Aachen. The Aachen campus substantially contributes to the Opera/Musical Theatre master's program by collaborating with the Theater Aachen and the recently established musical theatre chair through the Rheinische Opernakademie.
The German Army's Technical School (Technische Schule Landsysteme und Fachschule des Heeres für Technik) is in Aachen.
The annual CHIO (short for the French term Concours Hippique International Officiel) is the biggest equestrian meeting of the world and among horsemen is considered to be as prestigious for equitation as the tournament of Wimbledon for tennis. Aachen hosted the 2006 FEI World Equestrian Games and 2011 CHIO Aachen.
The local football team Alemannia Aachen had a short run-out in Germany's first division, after its promotion in 2006. However, the team could not sustain its status and is now back in the fourth division. The stadium "Tivoli", opened in 1928, served as the venue for the team's home games and was well known for its incomparable atmosphere throughout the whole of the second division. Before the old stadium's demolition in 2011, it was used by amateurs, whilst the Bundesliga Club held its games in the new stadium "Neuer Tivoli" – meaning New Tivoli—a couple of metres down the road. The building work for the stadium which has a capacity of 32,960, began in May 2008 and was completed by the beginning of 2009.
The city's biggest tennis club, "TC Grün Weiss", annually hosts the ATP Tournament.
The Ladies In Black women's volleyball team (part of the "PTSV Aachen" sports club since 2013) has played in the first German volleyball league (DVL) since 2008.
Aachen's railway station, the Hauptbahnhof (Central Station), was constructed in 1841 at the Cologne-Aachen railway line and replaced in 1905, moving it significantly closer to the city centre. It serves main lines to Cologne, Mönchengladbach and Liège as well as branch lines to Heerlen, Alsdorf, Stolberg and Eschweiler. ICE high speed trains from Brussels via Cologne to Frankfurt am Main and Thalys trains from Paris to Cologne also stop at Aachen Central Station. Four RE lines and two RB lines connect Aachen with the Ruhrgebiet, Mönchengladbach, Spa (Belgium), Düsseldorf and the Siegerland. The Euregiobahn, a regional railway system, reaches several minor cities in the Aachen region.
There are four smaller stations in Aachen: Aachen West, Aachen Schanz, Aachen-Rothe Erde and Eilendorf. Slower trains stop at these. Aachen-West has developed priority with the expansion of RWTH Aachen University.
The first horse tram line in Aachen opened in December 1880. After electrification in 1895, it was with maximal 213.5 kilometres (132.7 mi) in 1915 the fourth-longest tram system in Germany. Many tram lines extended to the surrounding towns of Herzogenrath, Stolberg (Rheinland), Alsdorf as well as the Belgian and Dutch communes of Vaals, Kelmis (then Altenberg) and Eupen. The Aachen tram system was linked with the Belgian national interurban tram system. Like many tram systems in Western Europe, the Aachen tram suffered from not well-maintained infrastructure and was so deemed unnecessary and disrupting for car drivers by local politics. On 28 September 1974 the last line 15 (Vaals–Brand) operated for one last day and was then replaced by buses. A proposal to reinstate a tram/light rail system under the name Campusbahn was dropped after a referendum.
Today, the ASEAG (Aachener Straßenbahn und Energieversorgungs-AG, literally "Aachen tram and power supply company") operates an 1,240.8 kilometres (771.0 mi) long bus network with 68 bus routes. Because of the location at the border, many bus routes extend to Belgium and the Netherlands. Lines 14 to Eupen, Belgium and 44 to Heerlen, Netherlands are jointly operated with Transport en Commun and Veolia Transport Nederland, respectively. ASEAG is one of the main participants in the Aachener Verkehrsverbund, a tariff association in the region.
Aachen is connected to the Autobahn A4 (West-East), A44 (North-South) and A544 (a smaller motorway from the A4 to the Europaplatz near the city centre). There are plans to eliminate traffic jams at the Aachen road interchange.
Maastricht Aachen Airport (IATA: MST, ICAO: EHBK) is the main airport of Aachen and Maastricht. It is located around 15 NM (28 km; 17 mi) northwest of Aachen. There is a shuttle-service between Aachen and the airport.
Since 1950, a committee of Aachen citizens annually awards the Charlemagne Prize (German: Karlspreis) to personalities of outstanding service to the unification of Europe. It is traditionally awarded on Ascension Day at the City Hall. Most recently in 2016, the Charlemagne Award will be awarded to Pope Francis.
The International Charlemagne Prize of Aachen was awarded in the year 2000 to US president Bill Clinton, for his special personal contribution to co-operation with the states of Europe, for the preservation of peace, freedom, democracy and human rights in Europe, and for his support of the enlargement of the European Union. In 2004, Pope John Paul II's efforts to unite Europe were honoured with an "Extraordinary Charlemagne Medal", which was awarded for the only time ever.
- Charlemagne, also known as Charles the Great, moved to Aachen and made it the capital of his empire.
- King Ethelwulf of Wessex, father of Alfred the Great, was born in Aachen.
- Ludwig Mies van der Rohe, one of the founders of modern architecture and the last director of the Bauhaus during its period in Dessau and Berlin, was born in Aachen.
- In 1850 Paul Julius Reuter founded the Reuters News Agency in Aachen which transferred messages between Brussels and Aachen using carrier pigeons.
- Anne Frank's mother, Edith Frank, was born in Aachen.
- The city is the home of the German band Unheilig.
- World-famous classical and crossover violinist, and child prodigy, David Garrett was born in Aachen.
Other notable people
- Johann Joseph Couven (1701–1763), architect and builder
- Adam Eberle (1804–1832), history painter and lithographer of the romance
- Johannes Theodor Laurent (1804–1884), Apostolic Vicar of Luxemburg
- Alfred von Reumont (1808–1887), statesman and historian
- Henri Victor Regnault (1810–1878), French physicist and chemist
- Arnold Foerster (1810–1884), botanist and entomologist
- Peter Ludwig Kuhnen (1812–1877), landscape painter of the Romantic
- Mary Frances Schervier (1819–1876), founder of the Poor Sisters of St. Francis
- Joseph Hubert Reinkens (1821–1896), Roman Catholic theologian
- Franz Bock (1823–1899), canon and art historian
- Adolph von Hansemann (1826–1903), entrepreneur and banker
- Adolph Sutro (1830–1898), mayor of San Francisco
- Adam Bock (1832–1912), politician
- Ludwig von Pastor (1854–1928), historian and Austrian diplomat
- Arthur Kampf (1864–1950), history painter and university professor
- Arthur Eichengrün (1867–1949), chemist and university lecturer
- Friedrich Pützer (1871–1922), architect, Protestant church architect and university lecturer
- Gottfried Hinze (1873–1953), 1st Chairman of the German Football Association
- Heinrich Hubert Houben (1875–1935), literary critic and journalist
- Wilhelm Worringer (1881–1965), art historian
- Hugo Werner-Kahle (1882–1961), actor
- Hanns Bolz (1885–1918), painter, sculptor and illustrator
- Emil Fahrenkamp (1885–1966), architect, university professor and director of Düsseldorf Art Academy
- Ludwig Mies van der Rohe (1886–1969), architect
- Adam Kuckhoff (1887–1943), writer and resistance fighter against Nazism
- Walter Grotrian (1890–1954), astronomer and astrophysicist
- Walter Hasenclever (1890–1940), writer
- Hans Freiherr von Funck (1891–1979), an officer
- Edgar André (1894–1936), politician
- Alfred Gottschalk (1894–1973), biochemist
- Heinrich Maria Davringhausen (1894–1970), painter
- Hans Croon (1896–1977), a textile manufacturer and president of the IHK Aachen
- Robert Ritter (1901–1951), Nazi racial theorist
- Leonhard Drach (1903–1996), jurist and war criminal
- Carl Schneider (1905–1975), painter and university professor
- Helmuth Gericke (1909–2007), mathematician and historian of mathematics
- Hans Ernst Schneider alias Hans Schwerte (1909/10-1999), SS-Hauptsturmführer and literary scholar
- Friedrich Hendrix (1911–1941), athlete
- Bert Heller (1912–1970), painter
- Karl Otto Götz (born 1914), the main representative of abstract art and Informel in Germany
- Claus Helmut Drese (1922–2011), opera and theatre director, writer
- Max Imdahl (1925–1988), art historian
- Otto Graf Lambsdorff (1926–2009), politician (FDP)
- Horst H. Baumann (born 1934), artist, designer and photographer
- Kurt Malangré (born 1934), politician
- Paul Theissen (born 1937), pianist, conductor and choirmaster
- Wolf Kahlen (born 1940), video pioneer and performance, object and media artist
- Manfred Schell (born 1943), trade unionist and politician
- Raymund Havenith (1947–1993), pianist and university lecturer
- Paul Lovens (born 1949), drummer
- Ulla Schmidt (born 1949), politician
- Hermann Bühlbecker (born 1950), CEO of the Lambertz Group
- Franz Josef Radermacher (born 1950), professor of computer science
- Udo Dahmen (born 1951), drummer, managing director of the Pop Academy Baden-Württemberg and music lecturer
- Léo Apotheker (born 1953), manager, SAP
- Matthias Frings (born 1953), journalist, television presenter and writer
- Karl Del'Haye (born 1955), football player
- Robert Schroeder (born 1955), musician and composer
- Gert Scobel (born 1959), journalist, TV presenter, author and philosopher
- Thomas Springel (born 1959), handball player
- Sabine Wils (born 1959), politician
Twin towns and sister cities
Aachen is twinned with:
- Liège, Belgium (since 1955)
- Montebourg, France (since 1960)
- Reims, France (1967)
- Halifax, West Yorkshire, England (1979)
- Toledo, Spain (1985)
- Ningbo, China (1986)
- Naumburg, Germany (1988)
- Arlington County, Virginia, US (1993)
- Cape Town, South Africa (1999)
- Kladno, Czech Republic (2001)
- Kostroma, Russia (2005)
- Rosh HaAyin, Israel (2007)
- Baltimore, County Cork, Ireland (2010)
- Sariyer, Turkey (2013)
- Aachen (district)
- Aachen Prison
- Aachen tram
- Aachener Bachverein
- List of mayors of Aachen
- Treaty of Aix-la-Chapelle (disambiguation)
- Maastricht Aachen Airport
- "RWTH" is the abbreviation of "Rheinisch-Westfälische Technische Hochschule", which translates into "Rhine-Westphalian Technical University". The institution is commonly referred to as "RWTH Aachen" or simply "RWTH", with the abbreviation remaining untranslated in other languages to avoid the use of the "Hochschule" term, which is sometimes mistakenly translated as high school. Sometimes, RWTH Aachen is also referred to as "TH Aachen" or "Aachen University". Furthermore, the term "FH Aachen" does not refer to the RWTH but to the Fachhochschule Aachen, a university of applied sciences, which is also in Aachen.
- This audio file is Andreas Schaub explaining the archaeological record in court in Archäologie am Hof.
- This is in dispute, as some history books state that Charlemagne was in fact born in Aachen in 742.
- This was during the period of 970 to 980.
- Sources differ on the age of the city hall, as the dates used for the construction were 1334–1349.
- "Amtliche Bevölkerungszahlen". Landesbetrieb Information und Technik NRW (in German). 18 July 2016.
- Young & Stetler 1987, p. 272.
- Munro 1995, p. 1
- Bridgwater & Aldrich 1968, p. 11.
- Bayer 2000, p. 1.
- RWTH Aachen University 2013.
- Anon 2009.
- Mielke 2013.
- Kerner 2013.
- Egger 1977, p. 15.
- Canby 1984, p. 1.
- Anon 2013.
- Schumacher 2009.
- Schaub 2013.
- Anon 2013a.
- Freimann 1906, p. 301.
- McClendon 1996, p. 1.
- Held 1997, p. 2.
- McClendon 1996a, p. 1.
- Eginhard 2012, p. 10.
- Merkl 2007, p. 2
- McClendon 1996a, p. 4.
- Dupuy & Dupuy 1986, p. 258.
- Kitchen 1996, p. 35.
- Kitchen 1996, p. 40.
- Ranson 1998, p. 45
- De Jong 1996, p. 279.
- McKitterick 1996, p. 1.
- Holborn 1982, p. 295.
- Encyclopædia Britannica Online 2006.
- Dupuy & Dupuy 1986, p. 563.
- Holborn 1982a, p. 70.
- Holborn 1982a, p. 217.
- Wilson 2004, p. 301.
- Holborn 1982b, p. 11.
- Van der Gragt 1968, p. 137.
- Holborn 1982b, p. 614.
- Stanton 2006, p. 76.
- Stanton 2006, p. 51.
- Stanton 2006, p. 50.
- Stanton 2006, p. 109.
- Stanton 2006, p. 105.
- Baker 2004, p. 37.
- Anon 2013b.
- Aachen Department of Environmental 2013.
- Federal Ministry of Transport, Building, and Urban Development 2013.
- Anderson, Ernest Masson (2012). Healy, David, ed. Faulting, Fracturing and Igneous Intrusion in the Earth's Crust. 367. Geological Society of London. ISBN 1-86239-347-8. ISSN 0305-8719.
- University of Cologne, Seismological Station Bensberg 2013.
- Geological Survey of North Rhine-Westphalia 2013.
- Information und Technik Nordrhein-Westfalen. "Bevölkerung im Regierungsbezirk Köln". Retrieved 16 November 2016.
- Aktualisierung 2012.
- City of Aachen 2012.
- RWTH Aachen University 2013a.
- Cohen 1998, p. 1.
- McClendon 1996a, p. 2.
- Gaehde 1996, p. 4.
- McClendon 1996a, p. 3.
- City of Aachen 2013.
- Young & Stetler 1987, p. 273.
- American-Israeli Cooperative Enterprise 2013.
- Knufinke 2013.
- Hoiberg 2010, pp. 1–2
- Aachen Institute for Advanced Study in Computational Engineering Science 2009
- Catholic University of Applied Sciences 2014
- Catholic University of Applied Sciences 2014a
- Academy of Music and Dance Cologne 2014
- Academy of Music and Dance Cologne 2014a
- Van der Meer, Richter & Opitz 1998, p. 718
- Gdawietz & Leroi 2008, p. 28
- Schäfer & Schäfer 2010
- Anon 2013c
- Calderdale Council 2012
- Twinning started by then independent municipality Walheim, now continued by borough Aachen-Kornelimünster/Walheim. "Montebourg - Frankreich". Retrieved 3 November 2016.
- Pecinovský 2009
- Aachen Department of Environmental (2013). "Stadtklima" [Urban Climate] (in German). Retrieved 9 February 2014.
- Aachen Institute for Advanced Study in Computational Engineering Science (2009). "About Aachen". RWTH Aachen University. Retrieved 9 February 2013.
- Academy of Music and Dance Cologne (2014). "Profile" (in German). Cologne University of Music. Archived from the original on 3 August 2014. Retrieved 3 August 2014.
- Academy of Music and Dance Cologne (2014a). "Homepage" (in German). Cologne University of Music. Archived from the original on 3 August 2014. Retrieved 3 August 2014.
- Anon (28 July 2009). "2thinknow Innovation Cities™ Global 256 Index". Innovation Cities. Retrieved 4 September 2016.
- ActiLingua Academy (2013). "The German Language and Its Many Forms". Vienna. Retrieved 4 September 2016.
- Anon (2013). "Aachen – römische Bäderstadt: Badeleben in einer römischen Therme" [Aachen – City Roman Baths: Life in a Roman thermal bath]. Archaeology in Aachen (in German). Retrieved 9 February 2014.
- Wetter – Deutschland (4 September 2016). "Wetter Aachen" [Aachen Weather] (in German). Retrieved 4 September 2016.
- DB – City (2013). "Aachen, Aachen, North Rhine-Westphalia, Germany – City, Town and Village of the world". Retrieved 9 February 2014.
- Anon (2014). "Search: Aachen". The Coordination Forum for Countering Antisemitism. Retrieved 31 July 2014.
- Aktualisierung, Letzte (2 May 2012). "Aachen: Wieder mehr Arbeitslose" [Aachen: Again, More Unemployed]. Aachener Nachrichten (in German). Retrieved 9 February 2014.
- American-Israeli Cooperative Enterprise (2013). "The Holocaust:Photographs". Jewish Virtual Library. American-Israeli Cooperative Enterprise. Retrieved 9 November 2013.
- American-Israeli Cooperative Enterprise (2013a). "The Holocaust:Photographs". Jewish Virtual Library. American-Israeli Cooperative Enterprise. Retrieved 28 January 2014.
- Baker, Anni P. (2004). American Soldiers Overseas: The Global Military Presence. Perspectives on the Twentieth Century. Westport, CT: Praeger Publishers. ISBN 0-275-97354-9.
- Bayer, Patricia, ed. (2000). "Aachen". Encyclopedia Americana. I A-Anjou (1st ed.). Danbury, CT: Grolier Incorporated. ISBN 0-7172-0133-3.
- Bridgwater, W.; Aldrich, Beatrice, eds. (1968). "Aachen". The Columbia-Viking Desk Encyclopædia (3rd ed.). New York, NY: Columbia University Press. ASIN B000UUM90Y.
- Calderdale Council (2012). "Aachen: Twin Towns". calderdale.gov.uk. Retrieved 9 February 2013.
- Canby, Courtlandt (1984). "Aachen". In Carruth, Gorton. The Encyclopedia of Historic Places. I: A-L. New York, NY: Fact on File Publications. ISBN 0-87196-126-1.
- Catholic University of Applied Sciences (2014). "Homepage". Catholic University of Applied Sciences. Archived from the original on 3 August 2014. Retrieved 3 August 2014.
- Catholic University of Applied Sciences (2014a). "Aachen". Catholic University of Applied Sciences. Archived from the original on 3 August 2014. Retrieved 3 August 2014.
- City of Aachen (2012). "Bevölkerungsstand:" [Population as of:] (in German). aachen.de. Retrieved 9 February 2014.
- City of Aachen (2013). "Cathedral of Aachen". City of Aachen. Retrieved 9 February 2014.
- Cohen, Saul B., ed. (1998). "Aachen". The Columbia Gazetteer of the World. New York, NY: Columbia University Press. ISBN 0-231-11040-5.
- De Jong, Mayke (1996). In Samuel's Image: Child Oblation in the Early Medieval West. Leiden, Netherlands: E. J. Brill. ISBN 90-04-10483-6. LCCN 95025956.
- Dupuy, R. Ernest; Dupuy, Trevor N. (1986). The Encyclopedia of Military History from 3500 B.C. to the Present (2nd Revised ed.). New York, NY: Harper & Row, Publishers. ISBN 0-06-181235-8.
- Egger, Carlo (1977). Lexicon nominum locorum [Lexicon of Place Names] (in Latin). Libreria Editrice Vaticana. ISBN 978-88-209-1254-3.
- Eginhard (2012) . Annales D'Eginhard; Vie de Charlemagne. Des Faits Et Gestes de Charlemagne [Annals of Eginhard Life of Charlemagne. Facts and gestures of Charlemagne] (in French). Hachette Livre – Bnf. ISBN 978-2-01-252304-3.
- Encyclopædia Britannica Online (2006). "Aachen". Encyclopædia Britannica Online. Retrieved 8 November 2013.
- Federal Ministry of Transport, Building, and Urban Development (2013). "Ausgabe der Klimadaten: Monatswerte" [Issue of climate data: monthly data] (in German). Retrieved 9 February 2014.
- Freimann, A. J. (1906). "Aix-La-Chapelle (Aachen)". In Singer, Isidore. The Jewish Encyclopedia. 1: Aach – Apocalyptic Lit. New York, NY: KTAV Publishing House.
- Gaehde, Joachim E. (1996). "Aachen: Buildings: Palatine Chapel: Sculpture and Treasury". In Turner, Jane; Brigstocke, Hugh. The Dictionary of Art. 1: A to Anckerman. New York, NY: Grove. pp. 4–5. ISBN 0-19-517068-7. LCCN 96013628.
- Gdawietz, Gregor; Leroi, Roland (2008). Von Aachen bis Bielefeld – Vom Tivoli zur Alm [From Aachen to Bielefeld – From Tivoli to the Pasture] (in German). Aachen, Germany: Meyer + Meyer Fachverlag. ISBN 978-3-89899-315-9. Retrieved 9 November 2013.
- Geological Survey of North Rhine-Westphalia (2013). "Erdbeben bei Roermond am 13. April 1992" [Earthquake in Roermond on 13 April 1992] (PDF) (in German). Retrieved 9 February 2014.
- Held, Colbert C. (1997). "Aachen". In Johnston, Bernard. Collier's Encyclopedia. I: A to Ameland (1st ed.). New York, NY: P. F. Collier.
- Hoiberg, Dale H., ed. (2010). "Aachen". Encyclopædia Britannica. I: A-Ak – Bayes (15th ed.). Chicago, IL: Encyclopædia Britannica, Inc. pp. 1–2. ISBN 978-1-59339-837-8.
- Holborn, Hajo (1982) . A History of Modern Germany. 1: The Reformation. Princeton, NJ: Princeton University Press. ISBN 0-691-00795-0.
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- Kerner, Maximillian (2013). "Aachen and Europe". City of Aachen. Retrieved 9 February 2014.
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- Knufinke, Ulrich (2013). "Aachen: Synagoge und Gemeindezentrum Synagogenplatz" [Aachen: Synagogue and community centre Synagogenplatz]. Zentralrat der Juden in Deutschland. Retrieved 9 February 2014.
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- McKitterick, Rosamond D. (1996). "Aachen: Centre of Manuscript Production". In Turner, Jane; Brigstocke, Hugh. The Dictionary of Art. 1: A to Anckerman. New York, NY: Grove. ISBN 0-19-517068-7. LCCN 96013628.
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- RWTH Aachen University (31 May 2016). "Internationalisierung" [Internationalisation] (PDF). Aachen University. Retrieved 4 September 2016.
- Schäfer, Burkhard; Schäfer, Sibylle (2010). "Biography David Garrett". David Garrett.
- Schaub, Andreas (2013). Andreas Schaub explains the archaeological record in court in Archäologie am Hof. City of Aachen (MP3) (Audio) (in German). Retrieved 9 February 2014.
- Schmetz, Oliver (2011). "Bestürzung über Nazi-Attacke auf Synagoge" [Dismay over Nazi attack on synagogue]. Aachener Zeitung. Retrieved 9 February 2014.
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- Cüppers, von Heinz (1982). Aquae Granni: Beiträge zur Archäologie von Aachen: Rheinische Ausgrabungen [Aquae Granni: Contributions to Archaeology of Aachen: Excavations of the Rhineland] (in German). Cologne, Germany: Rheinland-verlag. ISBN 3-7927-0313-0. LCCN 82178009.
- Faymonville, D. (1916). Die Kunstdenkmäler der Stadt Aachen [The Monuments of the City of Aachen] (in German). Düsseldorf, Germany: L. Schwann.
- Grimme, Ernst Günther (1972). Der Aachener Domschatz [The Aachen Cathedral Treasury]. Aachener Kunstblätter [Written Works on Aachen] (in German). Düsseldorf, Germany: L. Schwann. LCCN 72353488.
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- Official website (German)