Henry Wellesley, 1st Baron Cowley Henry Wellesley, 1st Baron Cowley Henry Wellesley, 1st Baron Cowley GCB (20 January 1773 – 27 April 1847) was a British diplomat and politician. Wellesley was the fifth and youngest son of Garret Wellesley, 1st Earl of Mornington, by the Honourable Anne Hill-Trevor, eldest daughter of Arthur Hill-Trevor, 1st Viscount Dungannon. He was the younger brother of Arthur Wellesley, 1st Duke of Wellington, Richard Wellesley, 1st Marquess Wellesley and William Wellesley-Pole, 3rd Earl of Mornington. He was educated at Eton and at the court of the Duke of Brunswick. He purchased an Ensigncy in the 40th Foot in 1790. Wellesley's
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