The Dukes of Portland are a title in the British peerage, originating in the 18th century. The first Duke, William Bentinck, was created Duke in 1716. The family has a rich history, with connections to various estates and lands, particularly in Nottinghamshire and Derbyshire. The Dukes have played significant roles in British society, including politics and land management. The title is part of the Bentinck family, which has produced notable figures, including military leaders and politicians. The current Duke continues to manage family estates and engage in charitable activities.