 His elder brother the Most Reverend Charles Manners-Sutton was Archbishop of Canterbury from 1805 to 1828 and the father of Charles Manners-Sutton, 1st Viscount Canterbury, Speaker of the House of Commons from 1817 to 1834.His father had assumed the additional surname of Sutton on succeeding to the estates of his maternal grandfather Robert Sutton, 2nd Baron Lexinton.Manners-Sutton was educated at Charterhouse School and Emmanuel College, Cambridge (matriculated 1773, graduated B.A.