The title "Duke of Leicester" is a noble rank in the British peerage system. It was first created in 1564 for Robert Dudley, a close friend of Queen Elizabeth I. The title has been granted several times since then, with the most recent creation in 1836. The Duke of Leicester is associated with the city of Leicester in England. The title is part of the House of Lords, where dukes hold significant historical and ceremonial importance. Dukes often have estates and responsibilities tied to their titles, contributing to the cultural heritage of the regions they represent.