. . . . . . . . "the Duke of Portland" . . "William John Arthur James Cavendish-Bentinck" . . . . . . . . "William Cavendish-Bentinck, 6th Duke of Portland" . . . . . . . "William Cavendish-Bentinck" . . "William John Arthur Charles James Cavendish-Bentinck, 6th Duke of Portland" . . . . "1943-04-26" . . . . . . . . . . "The Duke of Portland" . . . . "1857-12-28" . "William John Arthur Charles James, Duke of Portland" . . . "6th Duke of Portland" . "The 6th Duke of Portland" . . "William_Cavendish-Bentinck,_6th_Duke_of_Portland" . . . "William John Arthur Charles
James Cavendish-Bentinck,
'''6th Duke of Portland'''
7th Earl of Portland" . "1857" . . . . . . . . "William John Arthur James Cavendish-Bentinck, 6th Duke of Portland" . . . . . . "Duke of Portland" . "William Cavendish-Bentinck, 6th Duke of Portland" . . "William" . . "Victoria Wemyss" . . . . . . . . . . . . . . . . . . . . . . . "The Duke" . . . . "William Cavendish-Bentinck, 6th Duke of Portland, KG, GCVO" . . . . . . . . . . "1943" . . . . . . . . . . . . "William John Arthur Charles James Cavendish-Bentinck, 2nd Baron Bolsover, 6th Duke of Portland" . "Duke" . . . . "6th Duke" .