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,
Principality of Ansbach Principality of Ansbach The Principality or Margraviate of (Brandenburg-)Ansbach ( or ) was a principality in the Holy Roman Empire centered on the Franconian city of Ansbach. The ruling Hohenzollern princes of the land were known as margraves, as the principality was a margraviate (but not a march). The principality was established at the death of Frederick V, Burgrave of Nuremberg, on 21 January 1398, when his lands were partitioned between his two sons. The younger son, Frederick VI, received Ansbach and the elder, John III, received Bayreuth. After John III's death on 11 June 1420, the two principalities were