The Earls of Derby is a title in the British peerage, first created in 1485 for Edward Stanley. The title has been held by the Stanley family, who played significant roles in English history, particularly during the Wars of the Roses and the English Civil War. The Earls have been influential in both political and social spheres, with several members serving in Parliament and holding various governmental positions. The current holder of the title is the 21st Earl of Derby, who succeeded in 1994. The family seat is Knowsley Hall in Merseyside, England. The Earls of Derby have a rich heritage, including connections to the famous Derby horse race, which is named after the family.