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,
Princess Frederica Caroline of Saxe-Coburg-Saalfeld Princess Frederica Caroline of Saxe-Coburg-Saalfeld Princess Frederica Caroline of Saxe-Coburg-Saalfeld, Duchess in Saxony (24 June 1735 – 18 February 1791) was a princess of Saxe-Coburg-Saalfeld by birth and through marriage the last Margravine of Brandenburg-Ansbach and Bayreuth. Frederica Caroline was the fifth child and youngest daughter of Franz Josias, Duke of Saxe-Coburg-Saalfeld and Princess Anna Sophie of Schwarzburg-Rudolstadt (1700–1780), daughter of Louis Frederick I, Prince of Schwarzburg-Rudolstadt. On 22 November 1754 in Coburg, she married Margrave Karl Alexander of Brandenburg-Ansbach and Bayreuth (1736-1806). The marriage was concluded for dynastic reasons. Although Frederica Caroline was considered virtuous, gentle, charitable and devout,