William Wellesley-Pole, 3rd Earl of Mornington William Wellesley-Pole, 3rd Earl of Mornington William Wellesley-Pole, 3rd Earl of Mornington (20 May 1763 – 22 February 1845), known as Lord Maryborough between 1821 and 1842, was an Anglo-Irish politician and an elder brother of the Duke of Wellington. His surname changed twice: he was born with the name Wesley, which he changed to Wesley-Pole following an inheritance in 1781. In 1789 the spelling was updated to Wellesley-Pole, just as other members of the family had changed Wesley to Wellesley. He was born as William Wesley, at Dangan Castle, the second son of Garret Wesley, 1st Earl of Mornington
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