"Albert Frederick, Prince of Prussia, Margrave of Brandenburg-Schwedt (24 January 1672 – 21 June 1731), was a Lieutenant General in the army of the Electorate of Brandenburg-Prussia and Grand Master of the Order of Saint John. In his lifetime he held the courtesy title of Margrave of Brandenburg. His elder brother Philip William held the town and lands of Schwedt." - (en.wikipedia.org 12.08.2021)