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 Brunswick Caroline of Brunswick Caroline of Brunswick (Caroline Amelia Elizabeth; 17 May 1768 – 7 August 1821) was Queen consort of the United Kingdom as the wife of King George IV from 29 January 1820 until her death in 1821. She was the Princess of Wales from 1795 to 1820. Her father, Charles William Ferdinand, was the ruler of Brunswick-Wolfenbüttel in Germany, and her mother, Augusta, was the sister of the British king George III. In 1794, she was engaged to her first cousin and George III's eldest son, George, despite the two of them never having met and George already