Arthur Wellesley, 1st Duke of Wellington

Field Marshal Arthur Wellesley, 1st Duke of Wellington (né Wesley; 1 May 1769 – 14 September 1852) was a British Army officer and statesman who was one of the leading military and political figures in Britain during the early 19th century, twice serving as Prime Minister of the United Kingdom. He was one of the British commanders who ended the Anglo-Mysore wars by defeating Tipu Sultan in 1799 and among those who ended the Napoleonic Wars in a Coalition victory when the Seventh Coalition defeated Napoleon at the Battle of Waterloo in 1815.

Wellesley was born into a Protestant Ascendancy family in Dublin, in the Kingdom of Ireland. He was commissioned as an ensign in the British Army in 1787, serving in Ireland as aide-de-camp to two successive lords lieutenant of Ireland. He was also elected as a member of Parliament in the Irish House of Commons. Rising to the rank of colonel by 1796, Wellesley served in the Flanders campaign before being sent to India, where he fought in the Fourth Anglo-Mysore War, ending the conflict with a victory at Seringapatam in 1799. He was appointed governor of Seringapatam and Mysore and, as a newly appointed major-general, won a decisive victory over the Maratha Confederacy at the Battle of Assaye in 1803.

Rising to prominence as a general officer during the Peninsular War, Wellesley was promoted to field marshal after leading British-led forces to victory against a French army at the Battle of Vitoria in 1813. Following Napoleon's first exile in 1814, he served as the British ambassador to France and was made Duke of Wellington. During the Hundred Days campaign in 1815, Wellington commanded another British-led army which, together with a Prussian army under Field Marshal Gebhard von Blücher, defeated Napoleon at Waterloo.

After the end of his active military career, Wellington returned to politics, becoming a prominent member of the British Tory party. He served as prime minister from 1828 to 1830, as well as on an interim basis for a little less than a month in 1834. Wellington oversaw the passage of the Roman Catholic Relief Act 1829, and opposed the Reform Act 1832. He is the only Irishman to serve as British prime minister. He continued to be one of the leading figures in the House of Lords until his retirement in 1846 and remained Commander-in-Chief of the Forces until his death in 1852.