Arthur Wellesley, 2nd Duke of Wellington eldest son of Arthur Wellesley, 1st Duke of Wellington, and the Honourable Catherine Sarah Dorothea "Kitty" Pakenham, daughter of Edward Pakenham, 2nd Baron Longford. Lord Charles Wellesley was his younger brother and Lord Wellesley, Lord Mornington and Lord Cowley his uncles. He was educated at Temple Grove School, Eton College, Christ Church, Oxford, and Trinity College, Cambridge. He became known by the courtesy title Lord Douro when his father was created Earl of Wellington in 1812 and as Marquess of Douro in 1814 after his father was elevated to a dukedom. He was a Page of Honour from 1818 to
William Wellesley-Pole, 3rd Earl of Mornington 1835 Postmaster-General. From 1838 he held the honorary position of Captain of Deal Castle. On the death in 1842 of his elder brother Richard Wellesley, 1st Marquess Wellesley and 2nd Earl of Mornington, he succeeded as 3rd Earl of Mornington. In 1784 Lord Mornington married Katherine Elizabeth Forbes, daughter of Admiral John Forbes and granddaughter of the George Forbes, 3rd Earl of Granard, and of William Capell, 3rd Earl of Essex. They had the following progeny, one son and three daughters: He died on 22 February 1845. William Wellesley-Pole, 3rd Earl of Mornington William Wellesley-Pole, 3rd Earl of Mornington (20