Principality of Wales
|Principality of Wales|
|Client state of England (1283–1294, 1295–1400, 1415–1542)|
Principality of Wales (1267–1277) illustrating the lands ruled directly by the Prince of Wales.
Gwynedd, Llywelyn ap Gruffudd's principality
Territories conquered by Llywelyn ap Gruffudd
Territories of Llywelyn's vassals
Lordships of the Marcher barons
Lordships of the King of England
|Capital||Abergwyngregyn (Aber Garth Celyn)|
|Languages||Middle Welsh, Welsh|
|•||1216–1283||Llywelyn Fawr and descendants|
|•||1301–1542||Edward of Caernarvon and subsequent heirs to the English throne|
|Historical era||Middle Ages|
|•||Council of Aberdyfi||1216|
|•||Treaty of Worcester||1218|
|•||Treaty of Montgomery||1267|
|•||Treaty of Aberconwy||1277|
|•||Statute of Rhuddlan||3 March 1284|
|•||Laws in Wales Acts||1535–1542 1542|
|Today part of|
The Principality of Wales (Welsh: Tywysogaeth Cymru) existed between 1216 and 1536, encompassing two-thirds of modern Wales during its height between 1267 and 1277. For most of its history it was "annexed and united" to the English Crown. However, for a few generations, specifically the period from its foundation in 1216 to Edward I's completion of the conquest of Wales in 1284, it was de facto independent under a Welsh Prince of Wales, albeit one who swore fealty to the King of England.
The Principality was formally founded in 1216 at the Council of Aberdyfi and later recognised by the 1218 Treaty of Worcester between Llywelyn the Great of Wales and Henry III of England. The treaty gave substance to the political reality of 13th century Wales and England, and the relationship of the former with the Angevin Empire. The principality retained a great degree of autonomy, characterized by a separate legal jurisprudence based on the well established laws of Cyfraith Hywel, and by the increasingly sophisticated court of the House of Aberffraw. Although it owed fealty to the Angevin king of England, the principality was de facto independent, with a similar status in the empire to the Kingdom of Scotland. Its existence has been seen as proof that all the elements necessary for the growth of Welsh statehood were in place.
The period of de facto independence ended with Edward I's conquest of the Principality between 1277 and 1283. Under the Statute of Rhuddlan the Principality lost its independence and became effectively an annexed territory of the English crown. From 1301, the crown's lands in north and west Wales formed part of the appanage of England's heir apparent, with the title "Prince of Wales". On accession of the Prince to the English throne, the lands and title became merged with the Crown again. On two occasions Welsh claimants to the title rose up in rebellion during this period, although neither ultimately succeeded.
Since the Laws in Wales Acts 1535–1542, which formally incorporated all of Wales within the Kingdom of England, there has been no geographical or constitutional basis for describing any of the territory of Wales as a principality, although the term has occasionally been used in an informal sense to describe the country, and in relation to the honorary title of Prince of Wales.
The 13th century Principality of Wales was based on the historic lands ruled by the Aberffraw family, lands in north Wales traditionally including Ynys Môn, Gwynedd-Uwch-Conwy (Gwynedd above the Conwy, or Upper Gwynedd), and the Perfeddwlad (the Middle Country) also known as Gwynedd-Is-Conwy (Gwynedd below the Conwy, or Lower Gwynedd). Additional lands were acquired through vassalage or conquest, and by regaining lands lost to Marcher lords, particularly that of the Perfeddwlad, Powys Fadog, Powys Wenwynwyn, and Ceredigion.
Previous Welsh rulers had styled themselves in a variety of ways, usually in relation to a certain patrimony like "Lord of Ceredigion" or "King of Builth". The most powerful were often referred to (by others at least) as "King of the Britons". As Wales was a defined geographical area with agreed borders, yet outside the bounds of England, anyone bestowed with the title Prince of Wales would have suzerainty over any local Welsh ruler but without the territorial ambitions on England of a King of the Britons – which implied "liberating" the Britons who still resided in places long considered a part of England such as Devon, Cornwall, Cumberland and other places, albeit in fewer and fewer numbers.
The Aberffraw family had long claimed primacy over all other Welsh lords, including over those rulers of Powys and of Deheubarth. In The History of Gruffydd ap Cynan, written in the late 12th century, the family asserted its rights as the senior line of descendants from Rhodri the Great, who had ruled most of Wales between 820–870, and whose sons came to rule in Gwynedd, Deheubarth, and Powys. Gruffudd ap Cynan's biography was first written in Latin and intended for a wider audience outside Wales. The significance of this claim was that the Aberffraw family owed nothing to the English king for its position in Wales, and that they held authority in Wales "by absolute right through descent," wrote historian John Davies.
Prior to 1284: under the House of Aberffraw
The Principality of Wales was created in 1216 at the Council of Aberdyfi, when it was agreed between Llywelyn the Great and the other sovereign princes among the Welsh that he was the paramount ruler amongst them, and they would pay homage to him. Later he obtained recognition, at least in part, of this agreement from the King of England, who agreed that Llywelyn's heirs and successors would enjoy the title "Prince of Wales" but with certain limitations to his realm and other conditions, including homage to the King of England as vassal, and adherence to rules regarding a legitimate succession. Llywelyn had been at pains to ensure that his heirs and successors would follow the "approved" (by the Pope at least) system of inheritance which excluded illegitimate sons. In so doing he excluded his elder bastard son Gruffydd ap Llywelyn from the inheritance, a decision which would have later ramifications. In 1240 Llywelyn died and Henry III of England (who succeeded John) promptly invaded large areas of his former realm, usurping them from him. However, the two sides came to peace and Henry honoured at least part of the agreement and bestowed upon Dafydd ap Llywelyn the title 'Prince of Wales'. This title would be granted to his successor Llywelyn in 1267 (after a campaign by him to achieve it) and was later claimed by his brother Dafydd and other members of the princely House of Aberffraw.
The traditional numbering of the Princes of Wales (according to Welsh sources) begins with Owain Gwynedd who ruled from 1137 until 1170. He was never acknowledged as Prince of Wales, and in fact never used that title; however he was considered by later chroniclers to have been the first Welsh prince to unite Wales. This was demonstrated when Owain Glyndŵr was explicitly crowned as Owain IV of Wales in 1404. The English viewed it very differently and considered the title to be bestowed by them and with their grace on only Dafydd ap Llywelyn in 1240 and Llywelyn ap Gruffudd in 1267. After 1301 the title was granted to the eldest son and heir of an English sovereign.
Owain Gwynedd 1137–70
The prodigious Owain Gwynedd succeeded in retaining for his family the primary position in Wales which his father had achieved. In 1154 he defeated an English and Powysian invasion, but was forced to give up some territory bordering the River Dee. In later years he recaptured these areas and achieved a dominant position for Gwynedd in Wales which had not been seen for centuries. During Owain's reign he changed his title from "King of Gwynedd" to "Prince of the Welsh" (J. B. Smith, Owain Gwynedd, 14–16).
Dafydd ab Owain Gwynedd c.1170–95
Dafydd ab Owain Gwynedd had usurped the crown from his siblings in a debilitating civil war within Gwynedd. He married the half-sister of king Henry II of England in 1174. He was eventually ousted in 1195 from his much reduced domain by his nephew Llywelyn.
Llywelyn ap Iorwerth 1195–1240
By 1200 Owain Gwynedd's grandson Llywelyn Fawr (the Great) ap Iorwerth ruled over all of Gwynedd, with England endorsing all of Llywelyn's holdings that year. England's endorsement was part of a larger strategy of reducing the influence of Powys Wenwynwyn, as King John had given William de Breos licence in 1200 to "seize as much as he could" from the native Welsh. However, de Breos was in disgrace by 1208, and Llywelyn seized both Powys Wenwynwyn and northern Ceredigon.
In his expansion, the Prince was careful not to antagonise King John, his father-in-law. Llywelyn had married Joan, King John's illegitimate daughter, in 1204. In 1209 Prince Llywelyn joined King John on his campaign in Scotland. However, by 1211 King John recognised the growing influence of Prince Llywelyn as a threat to English authority in Wales. King John invaded Gwynedd and reached the banks of the Menai, and Llywelyn was forced to cede the Perfeddwlad, and recognize John as his heir presumptive if Llywelyn's marriage to Joan did not produce any legitimate successors. Succession was a complicated matter given that Welsh law recognized children born out of wedlock as equal to those in born in wedlock and sometimes accepted claims through the female line. By then, Llywelyn had several illegitimate children. Many of Llywelyn's Welsh allies had abandoned him during England's invasion of Gwynedd, preferring an overlord far away rather than one nearby. These Welsh lords expected an unobtrusive English crown; but King John had a castle built at Aberystwyth, and his direct interference in Powys and the Perfeddwlad caused many of these Welsh lords to rethink their position. Llywelyn capitalised on Welsh resentment against King John, and led a church-sanctioned revolt against him. As King John was an enemy of the church, Pope Innocent III gave his blessing to Llywelyn's revolt.
Early in 1212 Llywelyn had regained the Perfeddwlad and burned the castle at Aberystwyth. Llywelyn's revolt caused John to postpone his invasion of France, and Philip Augustus, the King of France, was so moved as to contact Llywelyn and propose that they ally against the English king King John ordered the execution by hanging of his Welsh hostages, the sons of many of Llywelyn's supporters Llywelyn I was the first prince to receive the fealty of other Welsh lords at the 1216 Council of Aberdyfi, thus becoming the de facto Prince of Wales and giving substance to the Aberffraw claims.
Dafydd ap Llywelyn 1240–46
On succeeding his father, Dafydd immediately had to contend with the claims of his half-brother, Gruffudd, to the throne. Having imprisoned Gruffudd, his ambitions were curbed by an invasion of Wales led by Henry III in league with a number of the captive Gruffudd's supporters. In August 1241, Dafydd capitulated and signed the Treaty of Gwerneigron, further restricting his powers. By 1244, however, Gruffudd was dead, and Dafydd seems to have benefited from the backing of many of his brother's erstwhile supporters. He was acknowledged by the Vatican as Prince of Wales for a time, and defeated Henry III in battle in 1245 during the English king's second invasion of Wales. A truce was agreed in the autumn, and Henry withdrew; but Dafydd died unexpectedly in 1246 without issue. His wife, Isabella de Braose, returned to England; she was dead by 1248.
Dafydd married Isabella de Braose in 1231. Their marriage produced no children, and there is no contemporary evidence that Dafydd sired any heirs. According to late genealogical sources collected by Bartrum (1973), Dafydd had two children by an unknown woman (or women), a daughter, Annes, and a son, Llywelyn ap Dafydd, who apparently later became Constable of Rhuddlan and was succeeded in that post by his son Cynwrig ap Llywelyn.
Owain Goch ap Gruffydd 1246–53 (d. 1282)
Following Dafydd's death, Gwynedd was divided between Owain Goch and his younger brother Llywelyn. This situation lasted until 1252 when their younger brother Dafydd ap Gruffudd reached his majority. Disagreement about how to further divide the realm led to conflict in 1253 in which Llywelyn was victorious. Owain spent the remainder of his days a prisoner of his brother.
Llywelyn ap Gruffudd 1246–82
After achieving victory over his brothers, Llywelyn went on to reconquer the areas of Gwynedd occupied by England (the Perfeddwlad and others). His alliance with Simon de Montfort, 6th Earl of Leicester, in 1265 against King Henry III of England allowed him to reconquer large areas of mid Wales from the English Marcher Lords. At the Treaty of Montgomery between England and Wales in 1267 Llywelyn was granted the title "Prince of Wales" for his heirs and successors and allowed to keep the lands he had conquered as well as the homage of lesser Welsh princes in return for his own homage to the King of England and payment of a substantial fee. Disputes between him, his brother Dafydd and English lords bordering his own led to renewed conflict with England (now ruled by Edward I) in 1277. Following the Treaty of Aberconwy Llywelyn was confined to Gwynedd-uwch-Conwy. He joined a revolt instigated by his brother Dafydd in 1282 in which he died in battle.
Dafydd ap Gruffudd 1282–83
Dafydd assumed his elder brother's title in 1282 and led a brief period of continued resistance against England. He was captured and executed in 1283.
Government, administration and law
The political maturation of the principality's government fostered a more defined relationship between prince and the people. Emphasis was placed on the territorial integrity of the principality, with the prince as lord of all the land, and other Welsh lords swearing fealty to the prince directly, a distinction with which the Prince of Wales paid yearly tribute to the King of England. By treaty the principality was obliged to pay the kingdom large annual sums. Between 1267 and 1272 Wales made a total payment of £11,500, "proof of a growing money economy... and testimony of the effectiveness of the principality's financial administration," wrote historian Dr. John Davies. Additionally, modifications and amendments to the Law Codes of Hywel Dda encouraged the declined of the galanas (blood-fine) and the use of the jury system. The Aberffraw dynasty maintained vigorous diplomatic and domestic policies; and patronized the Church in Wales, particularly that of the Cistercian Order.
The princely court
At the end of the twelfth century, beginning of the thirteenth century, Llywelyn ab Iorwerth (Llywelyn Fawr or Llywelyn the Great), built a royal home at Abergwyngregyn, known as Tŷ Hir, the Long House, in later documents. To the east was the newly endowed Cistercian Monastery of Aberconwy; to the west the cathedral city of Bangor. In 1211, King John of England brought an army across the river Conwy, and occupied the royal home for a brief period; his troops went on to burn Bangor. Llywelyn's wife, John's daughter Joan, also known as Joanna, negotiated between the two men, and John withdrew. Joan died at Abergwyngregyn in 1237; Dafydd ap Llywelyn died there in 1246; Eleanor de Montfort, Lady of Wales, wife of Llywelyn ap Gruffudd, died there on 19 June 1282, giving birth to a baby, Gwenllian of Wales
Population, culture and society
The 13th century Principality of Wales encompassed three-quarters of the surface area of modern Wales; "from Anglesea to Machen, from the outskirts of Chester to the outskirts of Cydweli," wrote Davies. By 1271, Prince Llywelyn II could claim a growing population of about 200,000 people, or a little less than three-quarters of the total Welsh population. The population increase was common throughout Europe in the 13th century, but in Wales it was more pronounced. By Llywelyn II's reign as much as 10 percent of the population were town-dwellers. Additionally, "unfree slaves... had long disappeared" from within the territory of the principality, wrote Davies. The increase in men allowed the prince to call on and field a far more substantial army.
A more stable social and political environment provided by the Aberffraw administration allowed for the natural development of Welsh culture, particularly in literature, law, and religion. Tradition originating from The History of Gruffydd ap Cynan attributes Gruffydd I as reforming the orders of bards and musicians; Welsh literature demonstrated "vigor and a sense of commitment" as new ideas reached Wales, even in "the wake of the invaders", according to historian John Davies. Contacts with continental Europe "sharpened Welsh pride", wrote Davies in his History of Wales.
Economy and trade
The increase in the Welsh population, especially in the lands of the principality, allowed for a greater diversification of the economy. The Meirionnydd tax rolls give evidence to the thirty-seven various professions present in Meirionnydd directly before the conquest. Of these professions, there were eight goldsmiths, four bards (poets) by trade, 26 shoemakers, a doctor in Cynwyd and a hotel keeper in Maentwrog, and 28 priests; two of whom were university graduates. Also present were a significant number of fishermen, administrators, professional men and craftsmen.
With the average temperature of Wales a degree or two higher than it is today, more Welsh lands were arable for agriculture, "a crucial bonus for a country like Wales," wrote historian Dr. John Davies. Of significant importance for the principality included more developed trade routes, which allowed for the introduction of new energy sources such as the windmill, the fulling mill and the horse collar (which doubled the efficiency of horse-power).
The principality traded cattle, skins, cheese, timber, horses, wax, dogs, hawks, and fleeces, but also flannel (with the growth of fulling mills). Flannel was second only to cattle among the principality's exports. In exchange, the principality imported salt, wine, wheat, and other luxuries from London and Paris. But most importantly for the defence of the principality, iron and specialised weaponry were also imported. Welsh dependence on foreign imports was a tool that England used to wear down the principality during times of conflict between the two countries.
1284 to 1542: annexed to the English crown
The governance and constitutional position of the principality after its conquest was set out in the Statute of Rhuddlan of 1284. In the words of the Statute, the principality was "annexed and united" to the English crown, It was the king's personal fief. In 1301, this modified principality was bestowed on the English monarch's heir apparent and thereafter became the territorial endowment of the heir to the throne. The rest of Wales continued to be constituted as the "March of Wales" which remained outside of the Principality under the rule of Anglo-Norman Marcher Lords.
The Principality's administration was overseen by the Prince of Wales's Council comprising between 8 and 15 councillors sitting in London or, later, Ludlow in Shropshire. The Council acted as the Principality's final Court of Appeal. By 1476, the Council, which became known as the Council of Wales and the Marches, began taking responsibility not only for the Principality itself but its authority was extended over the whole of Wales.
For lands under royal control, the administration, under the Statute of Rhuddlan, was divided into the two territories: North Wales based at Caernarfon and West Wales based at Camarthen. The Statute organized the Principality into shire counties. Carmarthenshire and Cardiganshire were administered by the Justiciar of South Wales (or "of West Wales") at Carmarthen. In the North, the counties of Anglesey, Merionethshire, and Caernarfonshire were created under the control of Justiciar of North Wales and a provincial exchequer at Caernarfon, run by the Chamberlain of North Wales, who accounted for the revenues he collected to the Exchequer at Westminster. Under them were royal officials such as sheriffs, coroners, and bailiffs to collect taxes and administer justice. Another county, Flintshire, was created out of the lordships of Tegeingl, Hopedale, and Maelor Saesneg and was administered with the Palatinate of Cheshire by the Justiciar of Chester.
The remainder of the principality comprised lands which Edward I had granted to supporters shortly after the completion of the conquest in 1284, and which, in practice, became Marcher lordships: for example, the lordship of Denbigh granted to the Earl of Lincoln and the lordship of Powys granted to Owain ap Gruffydd ap Gwenwynwyn, who became Owen de la Pole. These lands after 1301 were held as tenants-in-chief of the Principality of Wales, rather than from the Crown directly, but were, for all practical purposes, not part of the principality.
The Statute of Rhuddlan introduced English common law to the principality, albeit with some local variation. Criminal law became entirely based on common law: the Statute stated that "in thefts, larcenies, burnings, murders, manslaughters and manifest and notorious robberies — we will that they shall use the laws of England". However, Welsh law continued to be used in civil cases such as land inheritance, contracts, sureties and similar matters, though with changes, for example illegitimate sons could no longer claim part of the inheritance, which Welsh law had allowed them to do.
Plantagenet and Tudor Princes
From 1301, the Plantagenet (and later, Tudor) English kings gave their heir apparent, if he was the king's son or grandson, the lands and title of "Prince of Wales". The one exception was Edward II's son, Edward of Windsor, who later became Edward III. Upon the heir's accession to the throne, the lands and title merged in the Crown.
The first "English" Prince of Wales was Edward I's son, Edward of Caernarfon. A late 16th century story claimed that Edward I gave him the title following his declaration to the Welsh that there would be a Prince of Wales "that was borne in Wales and could speake never a word of English": Edward was born at Caernarfon Castle and, in common with rest of the English ruling elite, spoke French. However, there seems to be no basis for the story. On 7 February 1301, the king granted to Edward all the lands under royal control in Wales, mainly the territory of the former Principality. Although the documents granting the land made no reference to the title "Prince of Wales", it seems likely that Edward was invested with it at the same time, since, within a month of the grant, he was referred to as the "Prince of Wales" in official documents.
- Edward of Caernarfon, later Edward II (Prince from 1301 until he became King in 1327)
- Edward of Woodstock, the Black Prince (Prince from 1343 to his death in 1376)
- Richard of Bordeaux, later Richard II (Prince from 1376 until he became King in 1377)
- Henry of Monmouth, later Henry V (Prince from 1399 until he became King in 1413)
- Edward of Westminster (Prince from 1454 until his death in 1471)
- Edward of the Sanctuary, later Edward V (Prince from 1471 until he became King in 1483)
- Edward of Middleham (Prince from 1483 to his death in 1484)
- Arthur Tudor (Prince from 1489 to his death in 1502)
- Henry Tudor, later Henry VIII (Prince from 1504 until he became King in 1509, the last Prince of Wales created prior to 1542)
Welsh claimants to the title
Two rebellions occurred during the period in support of Welsh claimants to the title of Prince of Wales.
Owain Lawgoch 1372–78
Owain was the great-nephew of Llywelyn ap Gruffudd and Dafydd ap Gruffudd. He claimed the title in exile in France and loyalists revolted in his name across Wales. He was assassinated before being able to return to Wales to lead them.
Owain Glyndŵr 1400–c. 1415
Glyndŵr was crowned at Machynlleth in 1404 during a revolt against Henry IV of England. He claimed descent from Rhodri Mawr through the House of Powys Fadog. He went on to establish diplomatic relations with foreign powers and liberated Wales from English rule. He was ultimately unsuccessful and was driven to the mountains where he led a guerrilla war. When and where he died is not known, but it is believed he died disguised as a friar in the company of his daughter, Alys, at Monnington Straddle in Herefordshire.
After 1542: union with England
The Principality of Wales came to an end as a legally defined territory with the Laws in Wales Acts 1535–1542.
The Encyclopaedia of Wales notes that the Council of Wales and the Marches was created by Edward IV in 1471 as a household institution to manage the Prince of Wales's lands and finances. In 1473 it was enlarged and given the additional duty of maintaining law and order in the Principality and the Marches of Wales. Its meetings appear to have been intermittent, but it was revived by Henry VII for his heir, Prince Arthur. The Council was placed on a statutory basis in 1543 and played a central role in co-ordinating law and administration. It declined in the early 17th century and was abolished by Parliament in 1641. It was revived at the Restoration before being finally abolished in 1689.
From 1689 to 1948 there was no differentiation between the government of England and government in Wales. All laws relating to England included Wales and Wales was considered by the British Government as an indivisible part of England within the United Kingdom. The first piece of legislation to relate specifically to Wales was the Sunday Closing (Wales) Act 1881. A further exception was the Welsh Church Act 1914, which disestablished the Church in Wales (which had formerly been part of the Church of England) in 1920.
In 1948 the practice was established that all laws passed in the Parliament of the United Kingdom were designated as applicable to either "England and Wales" or "Scotland", thus returning a legal identity to Wales which had not existed for hundreds of years following the Act of Union with Scotland in 1707. Also in 1948 a new Council for Wales was established as a parliamentary committee. In 1964 the Welsh Office was established, based in London, to oversee and recommend improvements to the application of laws in Wales. This situation would continue until the devolution of government in Wales and the establishment of the autonomous National Assembly for Wales in 1998.
Other uses of the term
Although no principality has ever been created that covers Wales as a whole, the term 'Principality' has been occasionally used since the sixteenth century as a synonym for Wales. For instance, the first atlas of Wales, by Thomas Taylor in 1718, was titled The Principality of Wales exactly described ..., and the term is still used by such publications as Burke's Landed Gentry. However, The Guardian style guide advises writers to "avoid the word 'principality'" in relation to Wales. The International Organisation for Standardisation (ISO) has defined Wales as a 'country' rather than a 'principality' since 2011, following a recommendation by the British Standards Institute and the Welsh Government.
The use of the term to refer to the territory of Wales should be distinguished from its use to refer to the title of Prince of Wales, which has been traditionally granted (together with the title Duke of Cornwall and various Scottish titles) to the heir apparent of the reigning monarch. It confers no responsibility for government in Wales, and has no constitutional meaning. Plaid Cymru are in favour of scrapping the title altogether. The Honours of the Principality of Wales refer to the Crown Jewels used at the investiture of Princes of Wales.
- BBC Wales: History, The emergence of the principality of Wales; extracted 26 March 2008
- Davies, John (1994). A History of Wales. New York: Penguin. ISBN 0-14-014581-8.
- Davies, John (2002). The Celts. New York: Cassell Illustrated. ISBN 1-84188-188-0.
- Evans, Gwynfor. Cymru O Hud. Abergwyngregyn.
- Morris, John E. (1996). The Welsh Wars of Edward I. Conshohocken, PA.: Combined Books. ISBN 0-938289-67-5.
- Lloyd, J.E (2004). A History of Wales; From the Norman Invasion to the Edwardian Conquest. New York: Barnes & Noble Publishing, Inc. ISBN 0-7607-5241-9.
- Stephenson, David (1984). The governance of Gwynedd. University of Wales Press. ISBN 0-7083-0850-3.
- Warner, Philip (1997). Famous Welsh Battles. New York: Barnes & Noble Publishing, Inc. ISBN 0-7607-0466-X.
- Davies, John (1994). A History of Wales (first ed.). Penguin. p. 138. ISBN 0-14-014581-8.
- Lloyd, J. E. (1994). A History of Wales: From the Norman Invasion to the Edwardian Conquest (first ed.). Barnes and Noble. p. 199. ISBN 0-7607-5241-9.
- "Llywelyn ab Iorwerth". Wales History. BBC Wales. Retrieved 15 September 2011.
- Davies, John (1994). A History of Wales (first ed.). Penguin. p. 148. ISBN 0-14-014581-8.
- Davies, John (1994). A History of Wales (first ed.). Penguin. pp. 116, 117, 128, 135. ISBN 0-14-014581-8.
- Lloyd, J. E. (1994). A History of Wales: From the Norman Invasion to the Edwardian Conquest (first ed.). Barnes and Noble. p. 220. ISBN 0-7607-5241-9.
- Rhodri inherited Gwynedd from his father and Powys from his mother, married Angharad, heiress Seisyllwg (modern Ceredigion and Carmarthenshire).
- "Owain Glyndwr: The revolt—part two". Wales History. BBC Wales. Retrieved 4 May 2011.
- Davies, John, A History of Wales, Penguin, 1994 Llywelyn I relations with English crown pg 136]
- Davies, John, A History of Wales, Penguin, 1994 English policy in Wales pg 136, Hangs Welsh hostages pg 137
- Davies, John, A History of Wales, Penguin, 1994, Welsh law succession pg 136
- Davies, John, A History of Wales, By John Davies, Penguin, 1994 Welsh lords pg 135–136
- Davies, John, A History of Wales Penguin, 1994 Relations with France pg 136
- Davies, John A History of Wales, Penguin, 1994, Tribute to England pg 129, Treasury pg 153
- Davies, John, A History of Wales, Penguin, 1994, Aberffraw stability and effects on population, town-dwellers, decline in slavery, page 151
- Lloyd, J.E., A History of Wales; From the Norman Invasion to the Edwardian Conquest, Aberffraw stability pg 219, 220
- Lloyd, J.E., A History of Wales; From the Norman Invasion to the Edwardian Conquest, Barnes & Noble Publishing, Inc. 2004, Recovers Gwynedd, Norman invasion, Battle of Anglesey Sound, pgs 21–22, 36, 39, 40, later years 76–77
- Davies, John, A History of Wales, Penguin, 1994, agriculture pg 150
- Davies, R. R. (2000), The Age of Conquest: Wales 1063–1415, Oxford: Oxford University Press, p. 461, ISBN 0-19-820878-2
- Cannon, John (ed.) (2009). Oxford Dictionary of British History. p. 661. ISBN 978-0199550371. Retrieved 2 July 2012.
- Jones, Francis (1969). The Princes and principality of Wales. p. 79. ISBN 0 90076820 7.
- Michael Prestwich (1992). Edward I. pp. 204–205. ISBN 978-0-7083-1076-2. Retrieved 3 July 2012.
- J. Graham Jones (January 1990). The history of Wales: a pocket guide. University of Wales Press. p. 32. ISBN 978-0-7083-1076-2. Retrieved 2 March 2011.
- Brian L. Blakeley; Jacquelin Collins (1 January 1993). Documents in British History: Early times to 1714. McGraw-Hill. p. 74. ISBN 978-0-07-005701-2. Retrieved 2 March 2011.
- Davies, R. R. (2000), The Age of Conquest: Wales 1063–1415, Oxford: Oxford University Press, pp. 364–365, ISBN 0-19-820878-2
- Davies, R. R. (2000), The Age of Conquest: Wales 1063–1415, Oxford: Oxford University Press, p. 364, ISBN 0-19-820878-2
- Hilaire Barnett (2004). Constitutional and Administrative Law (5th edition). Cavendish Publishing. p. 59. Retrieved 31 July 2011.
- Williams, Glanmor (1987). Recovery, reorientation and reformation: Wales c. 1415–1642. pp. 35–36. ISBN 0-19-821733-1.
- Davies, R. R. (2000), The Age of Conquest: Wales 1063–1415, Oxford: Oxford University Press, p. 368, ISBN 0-19-820878-2
- "Previous Princes of Wales". The Prince of Wales' website. Retrieved 2 July 2012.
- Phillips, Seymour (2010). Edward II. p. 36. ISBN 978 0 300 15657 7.
- Phillips, Seymour (2010). Edward II. p. 85. ISBN 978 0 300 15657 7.
- The National Library of Wales: Thomas Taylor fl.1670–1730
- [Burke’s Landed Gentry: The Principality of Wales and The North West]
- The Guardian, Style guide: W
- "International body grants Wales country status after principality error", WalesOnline, 1 August 2011, retrieved 5 February 2016
- Jenkins, Geraint H (1997). A concise history of Wales. Cambridge University Press. p. 103. ISBN 978-0-521-82367-8.
- "Plaid Cymru objections to Prince of Wales". Western Mail. 8 August 2006. Retrieved 20 August 2008.
- "Honours of the Principality of Wales". The Royal Household. Retrieved 2009-09-17.