William Frederick, Margrave of Brandenburg-Ansbach William Frederick, Margrave of Brandenburg-Ansbach William Frederick, Margrave of Brandenburg-Ansbach (8 January 1686 – 7 January 1723), was Margrave of the Principality of Brandenburg-Ansbach from 1703 until his death in 1723. He was the younger brother of Caroline of Ansbach and thus brother-in-law of George II of Great Britain. William Frederick was born in Ansbach in 1686 to John Frederick, Margrave of Brandenburg-Ansbach, and his second wife, Eleonore Erdmuthe of Saxe-Eisenach. His two surviving half-brothers, Margraves Christian Albert and George Frederick II, both died unmarried and without legitimate issue. He married his first cousin, Christiane Charlotte of Württemberg-Winnental. He died
Caroline of Ansbach and as queen, Caroline was known for her political influence, which she exercised through and for Walpole. Her tenure included four regencies during her husband's stays in Hanover, and she is credited with strengthening the House of Hanover's place in Britain during a period of political instability. Caroline was widely mourned following her death in 1737, not only by the public but also by the King, who refused to remarry. Caroline was born on 1 March 1683 at Ansbach, the daughter of John Frederick, Margrave of Brandenburg-Ansbach, and his second wife, Princess Eleonore Erdmuthe of Saxe-Eisenach. Her father was the