William Frederick, Margrave of Brandenburg-Ansbach in Unterreichenbach and was succeeded by his son Charles William Frederick, called "The Wild Margrave". 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
Caroline of Ansbach Elector of Hanover. She was renowned for her intelligence and strong character, and her uncensored and liberal court attracted a great many scholars, including philosopher Gottfried Leibniz. Caroline was exposed to a lively intellectual environment quite different from anything she had experienced previously. Before she began her education under Sophia Charlotte's care, Caroline had received little formal education; her handwriting remained poor throughout her life. With her lively mind, Caroline developed into a scholar of considerable ability. She and Sophia Charlotte developed a strong relationship in which Caroline was treated as a surrogate daughter; the queen once declared Berlin was