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 claimed George was so drunk that he "passed the greatest part of his bridal night under the grate, where he fell, and where I left him". Nine months after the wedding, Caroline gave birth to Princess Charlotte, George's only legitimate child, at Carlton House on 7 January 1796. Charlotte was second in the line of succession to the British throne after her father. Just three days after Charlotte's birth, George made out a new will. He left all his property to "Maria Fitzherbert, my wife", while to Caroline he left one shilling. Gossip about Caroline and George's troubled marriage