Princess Mary of Great Britain Princess Mary of Great Britain Princess Mary of Great Britain (5 March 1723 – 14 January 1772) was the second-youngest daughter of King George II of Great Britain and his wife Caroline of Ansbach, and Landgravine of Hesse-Kassel as the wife of Landgrave Frederick II. Princess Mary was born at Leicester House, Westminster, London. Her father was the Prince of Wales, later King George II. Her mother was Caroline of Ansbach, daughter of Johann Friedrich, Margrave of Brandenburg-Ansbach. Her father succeeded, as George II, on 11 June 1727, and she became "HRH The Princess Mary". Upon her death in 1737,
Caroline of Ansbach endangering the Hanoverian succession. He had heard reports of Caroline's "incomparable beauty and mental attributes". He immediately took a liking to her "good character" and the British envoy reported that George Augustus "would not think of anybody else after her". For her part, Caroline was not fooled by the prince's disguise, and found her suitor attractive. He was the heir apparent of his father's Electorate of Hanover and third-in-line to the British throne of his distant cousin Queen Anne, after his grandmother Dowager Electress Sophia and his father the Elector. On 22 August 1705, Caroline arrived in Hanover for her