in Königsberg (Germany).
His title was King in Prussia instead of King of Prussia.
Frederick I of Prussia
Source picture: Wikipedia
On July 11th. 1657, Frederick I of Prussia was born in Königsberg.
His parents were Frederick William, Elector of Brandenburg and
Louise Henriette of Orange-Nassau.
Frederick I married three times.
1/ Elizabeth Henrietta of Hesse-Kassel2/ Sophia Charlotte of Hanover
3/ Sophia Louise of Mecklenburg - Schwerin
Frederick I died on February 25th. 1713 in Berlin (Germany).
This name may not be familiar but he was the paternal grandfather of
Frederick the Great, an important King of Prussia.