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,
Charles Alexander, Margrave of Brandenburg-Ansbach of Schwarzburg-Rudolstadt. On 3 August 1757, Charles Alexander became the Margrave of Brandenburg-Ansbach. The "Residenz" of the principality was at Ansbach, but Charles Alexander preferred his hunting estate and country seat in Triesdorf. Here, he renovated the "White Castle" for his mistress Hippolyte Clairon, the "Red Castle" for himself, and built the "Villa Sandrina" for another mistress, "Fräulein Kurz", and the "Round Villa" ("Villa Rotunda") for his mistress (and later wife) Elizabeth Craven. In 1758, Charles Alexander founded the porcelain factory in Ansbach and made ventures into agriculture by importing sheep. In 1769, he acquired the principality of Bayreuth pursuant