This event took place in Cölln (sister town of old Berlin).His parents were
John George, Elector of Brandenburg and Sophie of Legnica.
Joachim III Frederick, Elector of Brandenburg - Source picture: Wikipedia
From 1566 till 1598 Joachim III Frederick served as administrator of the
Archbishop of Magdeburg.
On January 8th. 1570, Joachim III Frederick married Catherine of Brandenburg-
Küstrin. They would have 11 children.
In 1598 Joachim III Frederick succeeded his father as Elector of Brandenburg.
On October 23rd. 1603, Joachim III Frederick married Eleanor of Prussia.
They would have 1 child.
In 1605 Joachim III Frederick even became regent of Prussia. He also had
the titles Duke of:
Besides Elector of Brandenburg he was a member of the House of Hohenzollern
Joachim III Frederick died on July 18th. 1608 at the age of 62.