Princess Augusta of Hesse-Kassel was the wife of Prince Adolphus, Duke of Cambridge, the tenth-born child, and seventh son, of George III of the United Kingdom and Charlotte of Mecklenburg-Strelitz. The longest-lived daughter-in-law of George III, she was the maternal grandmother of Mary of Teck, wife of George V.

Prince Adolphus, Duke of Cambridge 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.