Richard Colley Wellesley, 1st Marquess Wellesley, (20 June 1760 – 26 September 1842) was an Anglo-Irish politician and colonial administrator. He was styled as Viscount Wellesley until 1781, when he succeeded his father as 2nd Earl of Mornington. In 1799, he was granted the Irish peerage title of Marquess Wellesley. He first made his name as Governor-General of India between 1798 and 1805, and he later served as Foreign Secretary in the British Cabinet and as Lord Lieutenant of Ireland. He was the fifth Governor-General of India (1798-1805). In 1799, while portraying his enemy as a cruel tyrant needing to be put down, he invaded Mysore and defeated Tipu, the Sultan of Mysore, in a major battle.