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 Charlotte died on a visit to her native Hanover. Caroline was devastated, writing to Leibniz, "The calamity has overwhelmed me with grief and sickness, and it is only the hope that I may soon follow her that consoles me." In June 1705, Queen Sophia Charlotte's nephew, Prince George Augustus of Hanover, visited the Ansbach court, supposedly incognito, to inspect Caroline, as his father the Elector did not want his son to enter into a loveless arranged marriage as he himself had. The nephew of three childless uncles, George Augustus was under pressure to marry and father an heir to prevent