Born in London, the son of Sir Ian Heathcoat-Amory, 2nd Baronet (see Heathcoat-Amory baronets) and Alexandra Georgina (OBE; who d. 1942), eldest daughter of Vice-Admiral Henry Seymour CB (brother of Francis, 5th Marquess of Hertford GCB).
He was educated at Eton College and Christ Church, Oxford, receiving an MA degree [REF].