Prince George William of Great Britain Prince George William of Great Britain Prince George William of Great Britain (13 November 1717 – 17 February 1718) was an infant member of the British royal family, second son of King George II and Caroline of Ansbach who, at the time of his birth, were the Prince and Princess of Wales. He died aged 3 months, 4 days. Prince George William was born at St James's Palace, London. His father later, The Prince George, Prince of Wales, son of George I. His mother was Caroline of Ansbach, daughter of Johann Friedrich, Margrave of Brandenburg-Ansbach. Twenty-six days after his birth,
Frederick I, Margrave of Brandenburg-Ansbach denied entry to Plassenburg Castle. The dispute was finally cleared when an agreement was reached in 1522, in which the demands of the younger sons of Frederick were met. On 14 February 1479, at Frankfurt (Oder), Frederick I was married to Princess Sophia of Poland (6 April 1464 – 5 October 1512), daughter of King Casimir IV of Poland by his wife Elisabeth of Austria, and sister of King Sigismund I of Poland. They had seventeen children: Frederick I, Margrave of Brandenburg-Ansbach Frederick I of Ansbach and Bayreuth (also known as Frederick V; or ; 8 May 1460 – 4