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. From 1816 to 1837, he served as Viceroy of the Kingdom of Hanover on behalf of his elder brothers King George IV and King William IV.
Adolphus married Princess Augusta of Hesse-Kassel in 1818, with whom he had three children: Prince George, Duke of Cambridge, Princess Augusta of Cambridge and Princess Mary Adelaide of Cambridge. He was the maternal grandfather of Princess Victoria Mary of Teck, later Queen Mary, who became consort to King George V.
