Richard Colley Wellesley, 1st Marquess Wellesley, Anglo-Irish politician and colonial administrator, is born on June 20, 1760, at Dangan Castle, County Meath. He, as governor of Madras (now Chennai) and governor-general of Bengal (both 1797–1805), greatly enlarges the British Empire in India and, as Lord Lieutenant of Ireland (1821–28, 1833–34), attempts to reconcile Protestants and Roman Catholics in a bitterly divided country. Throughout his life he displays an ever-increasing jealousy of his younger brother Arthur Wellesley, 1st Duke of Wellington, despite his own achievements.

Born Richard Colley Wesley, he is the eldest son of Garret Wesley, 1st Earl of Mornington (he changes the family surname to Wellesley in 1789). He is educated at the Royal School, Armagh, Harrow School, Eton College, and Christ Church, Oxford, although he leaves the latter in 1781, following his father’s death, before completing his degree. He enters the Irish House of Commons in 1780 and, after he inherits his father’s Irish titles in 1781, moves to the Irish House of Lords. A moderately liberal disciple of Prime Minister William Pitt the Younger, he wins a seat in the British House of Commons in 1784 and serves there until 1797. From 1793 he is a member of the British Privy Council and a commissioner of the India Board of Control.

As Governor-General of India, Wellesley uses military force and diplomacy to strengthen and expand British authority. East India Company forces defeat and kill Tipu Sultan, Indian Muslim ruler of the Kingdom of Mysore (present-day Mysuru) and sympathizer for Revolutionary France, in the Fourth Anglo-Mysore War (1799), and he then restores the Hindu dynasty there that had been deposed by Tipu’s father, Hyder Ali. He annexes much territory after his brother Arthur and General Gerard Lake defeat the Maratha Confederacy of states in the Deccan Plateau (peninsular India). In addition, he forces the Oudh State to surrender numerous important cities to the British, and he contracts with other states a series of “subsidiary alliances” by which all parties recognize British preponderance. He receives a barony in the British peerage in 1797 at the time of his appointment as governor-general, and in 1799 he is awarded a marquessate in the Irish peerage for his victory in the Mysore War.

When Wellesley is faced with an invasion by Zaman Shah Durrani, ruler (1793–1800) of Kabul (Afghanistan), he utilizes his envoy, Captain John Malcolm, to induce Fatḥ-Alī Shah Qajar of Qajar Iran to restrain Zaman Shah Durrani and to give British political and commercial interests preference over the French. On receiving a British government order to restore to France its former possessions in India, he refuses to comply. His policy is vindicated when the Treaty of Amiens (1802) is violated, and Great Britain resumes war against Napoleonic France.

Wellesley’s annexations and the vast military expenditure that he had authorized alarms the court of directors of the East India Company. In 1805, he is recalled, and soon afterward he is threatened with impeachment, although two years later he refuses an offer of the foreign secretaryship. In 1809, he goes to Spain to make diplomatic arrangements for the Peninsular War against France and later that year becomes foreign secretary under Prime Minister Spencer Perceval. In that office he antagonizes his colleagues, who consider him an indolent megalomaniac and welcome his resignation in February 1812. Unlike most of them, however, he had urged a stronger war effort in Spain and had advocated political rights for British Roman Catholics. After Perceval’s assassination on May 11, 1812, he attempts unsuccessfully to form a government at the request of the prince regent (the future King George IV).

As Lord Lieutenant of Ireland, Wellesley disappoints the anti-Catholic George IV, and he is about to be removed when his brother, Arthur, is appointed prime minister in January 1828. He then resigns because his brother is opposed to Roman Catholic emancipation, although the duke is constrained to accept that policy as a political necessity in 1829. His second term as Lord Lieutenant of Ireland (1833–34) ends with the fall of Charles Grey, 2nd Earl Grey’s reform government. When the Whig Party returns to power in April 1835, he is not sent back to Ireland, and in his rage, he threatens to shoot the prime minister, William Lamb, 2nd Viscount Melbourne. He wants to be created Duke of Hindustan so that his rank will equal that of his brother.

Wellesley dies at the age of 82 on September 26, 1842, at Knightsbridge, London. He is buried in Eton College Chapel, at his old school. He and Arthur, after a long estrangement, had been once more on friendly terms for some years. Arthur weeps at the funeral and says that he knows of no honour greater than being Lord Wellesley’s brother.

Wellesley’s library is sold at auction in London by R. H. Evans on January 17, 1843 (and three following days); a copy of the catalogue, annotated with prices and buyers’ names, is held at Cambridge University Library.

Wellesley has several children, including three sons, but none are legitimate. The marquessate thus becomes extinct upon his death. The earldom of Mornington goes to his next surviving brother, William Wellesley-Pole.

(From: “Richard Colley Wellesley, Marquess Wellesley, British statesman,” written and fact-checked by the Editors of Encyclopaedia Britannica, http://www.britannica.com, April 2024 | Pictured: “Richard Colley Wellesley, Marquess of Wellesley (1760-1842),” oil on canvas portrait by Thomas Lawrence, 1812-13)