Prince_Adolphus,_Duke_of_Cambridge

Prince Adolphus, Duke of Cambridge, (Adolphus Frederick; 24 February 1774 – 8 July 1850) was the tenth child and seventh son of King George III of the United Kingdom and Queen Charlotte. He held the title of Duke of Cambridge from 1801 until his death. He served as Viceroy of the Kingdom of Hanover successively on behalf of his elder brothers King George IV and King William IV.
Prince Adolphus married Princess Augusta of Hesse-Kassel in 1818, by whom he had three children: Prince George, Duke of Cambridge, Princess Augusta of Cambridge and Princess Mary Adelaide of Cambridge, who was the mother of Princess Mary of Teck (Queen Mary), the wife of King George V.