Gotthard Kettler

Gotthard Kettler
Duke of Courland and Semigallia
Reign 1561–1587
Successor Friedrich Kettler
Born (1517-02-02)February 2, 1517
Anröchte, Kreis Soest, Duchy of Cleves
Died May 17, 1587(1587-05-17) (aged 70)
Mitau, Duchy of Courland and Semigallia
Burial Ducal crypt in the Jelgava Palace
Spouse Anna, Duchess of Mecklenburg
Issue Friedrich Kettler
Wilhelm Kettler
House House of Kettler
Father Gotthard Kettler zu Melrich
Mother Sophie of Nesselrode
Religion Lutheranism

Gotthard von Kettler (also Ketteler, German: Gotthard Kettler, Herzog von Kurland; 2 February 1517 – 17 May 1587) was the last Master of the Livonian Order and the first Duke of Courland and Semigallia.


Kettler was born near Anröchte, Kreis Soest, of an old Westphalian noble family and the ninth child of the German knight Gotthard Kettler zu Melrich (mentioned 1527–1556) and his wife Sophie of Nesselrode. Gotthard's older brother Wilhelm Kettler was bishop of Münster from 1553 to 1557.

In 1554 Gotthard Kettler became Komtur of Dünaburg,[1] and in 1557 Komtur of Fellin. In 1559, during the Livonian War (1558–1582) he succeed to Wilhelm von Fürstenberg as a Master of the Teutonic Order in Livonia. When the Livonian Confederation came under increasing pressure from Tsar Ivan the Terrible, Kettler converted to Lutheranism and secularised Semigallia and Courland. On the basis of the Treaty of Vilnius (28 November 1561), he created the Duchy of Courland and Semigallia as a vassal state of the Grand Duchy of Lithuania, which was soon merged into the Polish-Lithuanian Commonwealth.[2]

On 11 March 1566 Kettler married Anna, Duchess of Mecklenburg, daughter of Duke Albert VII of Mecklenburg-Güstrow and Princess Anna of Brandenburg.[3] After Dukes proposal in 1567 Regional assembly (landtag) took decision to build 70 new churches and 8 schools in the remote areas of Duchy where many peasants still lived and died unbaptized.

He died on 17 May 1587 in Mitau (Polish Mitawa, Latvian Jelgava), aged 70. His heirs ruled in Courland until 1737.


  1. Cruse, Karl Wilhelm (1833). Curland unter den Herzoegen, Vol. 1 (in German). Reyher. p. 64.
  2. World and Its Peoples. Marshall Cavendish. September 2009. pp. 1047–. ISBN 978-0-7614-7896-6. Retrieved 13 August 2012.
  3. Bues, Almut (2005). Zones of Fracture in Modern Europe: The Baltic Countries, the Balkans, and Northern Italy. Otto Harrassowitz Verlag. p. 80. ISBN 344-705-119-1.


Preceded by
Title created
Duke of Courland
Succeeded by
Friedrich Kettler
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