Prince Adolphus, Duke of Cambridge

The Prince Adolphus, 1st Duke of Cambridge (Adolphus Frederick; 24 February 1774 – 8 July 1850), was the 10th child and 7th son of George III and Queen Charlotte. He held the title of Duke of Cambridge from 1801 until his death. He also served as Viceroy of Hanover on behalf of his brothers George IV and William IV. He was the great-great-grandfather of the current monarch, Elizabeth II.