What is "launcelot"

Launcelot (1837–1861) was a British Thoroughbred racehorse and sire best known for winning the classic St Leger Stakes in 1840. In a racing career which lasted from September 1839 until July 1841 he won four of his seven races although two of his victories came by way of walkover. As a two-year-old he proved himself to be one of the leading colts of his generation by winning the Champagne Stakes at Doncaster. In 1840 he started favourite for the Epsom Derby but was beaten by a 50/1 outsider Little Wonder. Later that year he recorded his most important victory when he defeated his stable companion Maroon in the St Leger. He was injured on his only appearance as a four-year-old and was retired to stud where he had little success as a sire of winners.