The "Barons of Derby" refers to a title in the English peerage system, historically associated with the town of Derby in Derbyshire. The title has been held by various noble families since its creation, with the first Baron being appointed in the 13th century. The barons played significant roles in local governance and national affairs throughout English history. The title has seen several notable holders, including members of the Cavendish family, who were influential in both politics and society. The Barons of Derby have contributed to the development of the region and have been involved in various historical events, reflecting the changing landscape of the British aristocracy.