 He was born in Old Burlington Street in Mayfair, London, the eldest son of Thomas Richard Beaumont by his wife Diana Wentworth, daughter of Sir Thomas Wentworth, 5th Baronet.Beaumont was educated at Eton College and St John's College, Cambridge, where he graduated with a Bachelor of Arts in 1813.He served as lieutenant-colonel of the Northumberland Militia, but resigned in 1824.