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 good omen. Like Elizabeth, the Electress's rights are denied her by a jealous sister [Queen Anne], and she will never be sure of the English crown until her accession to the throne." In June 1714, Dowager Electress Sophia died in Caroline's arms at the age of 83, and Caroline's father-in-law became heir presumptive to Queen Anne. Just weeks later, Anne died and the Elector of Hanover was proclaimed as her successor, becoming George I of Great Britain. George Augustus sailed to England in September 1714, and Caroline and two of her daughters followed in October. Her journey across the North