an Entity references as follows:
Karl Friedrich Albrecht, Margrave of Brandenburg-Schwedt (10 June 1705 – 22 June 1762), a grandson of Frederick William of Brandenburg (the Great Elector) and son of Margrave Albert Frederick of Brandenburg-Schwedt, was a Prussian military officer and the Herrenmeister (grand master) of the Order of Saint John (Bailiwick of Brandenburg).