Frederick IV, Duke of Brunswick-Lüneburg



Frederick, Duke of Brunswick and Lüneburg, (28 August 1574 – 10 December 1648) was the Prince of Lüneburg from 1636 to 1648.

Frederick was born on 28 August 1574, the tenth child of William the Younger (Brunswick-Lüneburg) (1535–1592) and Dorothea of Denmark to the New House of Lüneburg.

He became bishop's adjutor in the Bishopric of Ratzeburg and was elected propst (provost) of the Archdiocese of Bremen.