Wilhelm Kettler, Duke of Courland and Semigallia, was born 20 June 1574 in Mītava to Gotthard Kettler (1517-1587) and Anna von Mecklenburg (1533-1602) and died 4 July 1640 Kukulova of unspecified causes. He married Sophie von Preußen (1582-1610) 5 January 1609 . Charlemagne (747-814)/s.


Offspring of Wilhelm Kettler and Sophie von Preußen (1582-1610)
Name Birth Death Joined with
Jakob Kettler von Kurland (1610-1682) 7 November 1610 Kuldiga, Latvia 1 January 1682 Yelgava, Latvia Luise Charlotte von Brandenburg (1617-1676)

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