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 to ensure that the King and Queen could not be present at the birth. George and Caroline were horrified. Traditionally, royal births were witnessed by members of the family and senior courtiers to guard against supposititious children, and Augusta had been forced by her husband to ride in a rattling carriage for an hour and a half while heavily pregnant and in pain. With a party including two of her daughters and Lord Hervey, the Queen raced over to St. James's Palace, where Frederick had taken Augusta. Caroline was relieved to discover that Augusta had given birth to a "poor,