Joachim Friedrich

Joachim Friedrich Hohenzollern (1546-1608) succeeded his father Johann Georg as margrave of Brandenburg in 1598, and was in turn succeeded at his death by his son Johann Sigismund.He was duke of Prussia on account of his grandfather Joachim II Hector and his father Johann Georg having been co-inheritors of the Dukedom of Prussia.

Joachim Friedrich's sister was Sophie, who married Christian Wettin, Duke of Saxony. From that line came the later Frederick August I (the Strong) Duke of Saxony and King of Poland .

Joachim Friedrich's second marriage, in 1603, (apparently his first marriage was unimportant) was to Eleonore Hohenzollern, born 1583, daughter of Albert Frederick, Duke of Prussia.