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,
Joachim Ernst, Margrave of Brandenburg-Ansbach Joachim Ernst, Margrave of Brandenburg-Ansbach Joachim Ernst, Margrave of Brandenburg-Ansbach (22 June 1583, Cölln an der Spree – 7 March 1625, Ansbach) was a German nobleman. He ruled as margrave of Brandenburg-Ansbach from 1603 to 1625, succeeding his cousin George Frederick and succeeded by his son Frederick III. Joachim Ernst was the son of the elector John George of Brandenburg and his third wife, Elisabeth of Anhalt-Zerbst. He took over in 1603, the government of the Margraviate of Brandenburg-Ansbach, after the old line of Franconian Hohenzollerns died out with the death of George Fredrick the Elder of the Ansbach-Jägerndorf branch.