Sir Henry Halford (1766-1844), First Baronet, English physician. Born Henry Vaughan, he was educated at Rugby School and at Christchurch College, Oxford. Having qualified, he moved to London and advanced rapidly through the strata of medicine. In 1793 he was made physician extraordinary to King George III, the youngest ever such appointee.In 1809 he was created Baronet, at which time he changed his name to Halford in expectation of a family inheritance. He served as Physician in Ordinary to George III from 1812, retaining the position with George IV, William IV and the young Queen Victoria.