Thereafter Ansbach was held by cadet branches of the House of Hohenzollern, and its rulers were commonly called Margraves of Brandenburg-Ansbach. On 2 December 1791, the reigning Prince and Margrave of Ansbach, Charles Alexander , who had also succeeded to Bayreuth, sold the sovereignty of his principalities to King Frederick William II of Prussia .
Prince George William was born at St James's Palace in London on 13 November 1717 (2 November 1717 on the Julian calendar in use at the time). His father, The Prince of Wales, was the son of George I. His mother was Caroline of Ansbach, daughter of Johann Friedrich, Margrave of Brandenburg-Ansbach.