Wellington, Arthur Wellesley, 1st Duke of Wellington 1769-1852. British soldier and Tory politician. As commander in the Peninsular War, he expelled the French from Spain in 1814. He defeated Napoleon Bonaparte at Quatre-Bras and Waterloo in 1815, and was a member of the Congress of Vienna. As prime minister 1828-30, he was forced to concede Roman Catholic emancipation. Wellington was born in Ireland, the son of an Irish peer, and sat for a time in the Irish parliament. He was knighted for his army service in India and became a national hero with his victories of 1808-14 in the Peninsular War and as general of the allies against Napoleon. At the Congress of Vienna he opposed the dismemberment of France and supported restoration of the Bourbons. As prime minister he modified the Corn Laws but became unpopular for his opposition to parliamentary reform and his lack of opposition to Catholic emancipation. He was foreign secretary 1834-35 and a member of the cabinet 1841-46. He held the office of commander in chief of the forces at various times from 1827 and for life from 1842. His home was Apsley House in London.