Hugh Lupus Grosvenor, 1st Duke of Westminster, (13 October 1825 – 22 December 1899), styled Viscount Belgrave between 1831 and 1845, Earl Grosvenor between 1845 and 1869, and known as The Marquess of Westminster between 1869 and 1874, was an English landowner, politician and racehorse owner. He inherited the estate of Eaton Hall in Cheshire and land in Mayfair and Belgravia, London, and spent much of his fortune in developing these properties. Although he was a MP from the age of 22, and then a member of the House of Lords, his main interests were not in politics, but rather in his estates, in horse racing, and in country pursuits. He developed the stud at Eaton Hall and achieved success in racing his horses, winning the Derby on four occasions. Personal life Hugh Lupus Grosvenor was the second and eldest surviving son of Richard Grosvenor, 2nd Marquess of Westminster and Lady Elizabeth Leveson-Gower, the younger daughter of George Leveson-Gower, the 2nd Marquess of Stafford and later the 1st Duke of Sutherland. He was educated at Eton College and, until 1847, at Balliol College, Oxford. He left Oxford without taking a degree to become Member of Parliament (MP) for Chester. This seat, a family borough, had been held by his uncle, Robert Grosvenor (later the 1st Baron Ebury), who decided to move to one of the two unopposed Middlesex seats. In 1851, he toured India and Ceylon. The following year, on 28 April 1852, Grosvenor married his first cousin, the 17-year-old Lady Constance Sutherland-Leveson-Gower, the fourth daughter of the 2nd Duke of Sutherland. The wedding was held in the Chapel Royal in St. James's Palace, London, and was attended by Queen Victoria and Albert. Constance's mother had been Mistress of the Robes to Queen Victoria and a "favourite" of the queen. Their first child, a son, was born in 1853, and Queen Victoria became his godmother. By 1874, the couple had eleven children, eight of whom survived into adulthood; five sons and three daughters. In 1880, Constance died from Bright's disease (nephritis). Two years later, in June 1882, Grosvenor married Katherine Cavendish, third daughter of the 2nd Baron Chesham and Henrietta Frances Lascelles. She was then aged 24; she was younger than the duke's eldest son and two of his daughters. They had four children, two sons and two daughters. The succession to the dukedom (and estates) was destined to devolve