Calvert, Frederick, 6th Baron Baltimore (1731 -1771)
Frederick Calvert was the eldest son of Charles, 5th Lord Baltimore, Proprietor Governor of Maryland, and Mary Jansen. Educated at Eton, he succeeded to the title in 1751, and married Diana Egerton, youngest daughter of Scrope, 1st Duke of Bridgewater. After a career of profligacy and extravagance, he was tried for a rape at Kingston assizes 26 March 1768, and having with difficulty escaped conviction, he went to live on the continent and died in Naples in 1771, when the title became extinct. He left Maryland to his illegitimate son Henry Harford, and the remnant of his fortune to his sister, having sold most of the family estates to John Trotter, an upholsterer of Soho.