William Cavendish-Bentinck served twice as Prime Minister, briefly in 1783 and from 1807 to 1809: by what title is he better known?
Marquess of Titchfield Duke of Portland Baron Cirencester Dukes of Portland The Duke of Portland Count Bentinck Duchess of Portland Lord Weston Earls of Portland Baron Weston Earl of Portland Earl of portland
lord weston baron cirencester marquess of titchfield duchess of portland duke of portland baron weston earl of portland dukes of portland count bentinck earls of portland
duke of portland
WikipediaEntity
Duke of Portland