Wilhelm von Brandenburg [SEP] date of death
Wilhelm von Brandenburg
Wilhelm von Brandenburg (30 June 1498 – 4 February 1563) was the Archbishop of Riga from 1539 to 1561.
A member of the House of Hohenzollern, Wilhelm was the son of Frederick I, Margrave of Brandenburg-Ansbach, the brother of Albert, Duke of Prussia, and the grandson of Albert III Achilles, Elector of Brandenburg and Casimir IV Jagiellon.
After William's administration as Prince-bishop ended during the Livonian War, Riga became a Free City (1561–1581).
Friedrich Wilhelm, Count Brandenburg
Friedrich Wilhelm, Count of Brandenburg (24 January 1792 – 6 November 1850) was a German soldier and politician, who served as Minister President of Prussia from 1848 until his death. 
Life.
Born in the Prussian capital Berlin, he was the son of King Frederick William II of Prussia (1744–1797) from his morganatic marriage with Countess Sophie von Dönhoff (1768–1838). He and his younger sister Julie (1793–1848) received the comital title "von Brandenburg" in 1794, and