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
Arthur Wellesley, 1st Duke of Wellington and status, Kitty Pakenham's family had consented to his marrying her. Wellesley and Kitty were married in Dublin on 10 April 1806. The marriage would prove to be unsatisfactory and the two would spend years apart while Wellesley was campaigning. Kitty grew depressed, while Wellesley pursued other sexual and romantic partners. However the marriage produced two sons, Arthur, in 1807, and Charles, in 1808. They lived apart for most of the time and occupied separate rooms in the house when they were together. Her brother, Edward "Ned" Pakenham, served under Wellesley throughout the Peninsular War and Wellesley's regard for him