Duke of Portland

==Holders==
 	From 	Until 	Name 	Lifespan
1.	6 July 1716 	4 July 1724 	The Most Noble Henry Bentinck, 1st Duke of Portland 	1680-1724
2.	4 July 1724 	1 May 1762 	The Most Noble William Bentinck, 2nd Duke of Portland, K.G. 	1709-1762
3.	1 May 1762 	30 October 1809 	The Most Noble William Henry Cavendish Cavendish-Bentinck, 3rd Duke of Portland, K.G., P.C. 	1738-1809
4.	30 October 1809 	27 March 1854 	The Most Noble William Henry Cavendish Cavendish-Scott-Bentinck, 4th Duke of Portland, P.C. 	1768-1854
5.	27 March 1854 	6 December 1879 	The Most Noble William John Cavendish Cavendish-Scott-Bentinck, 5th Duke of Portland 	1808-1879
6.	6 December 1879 	26 April 1943 	The Most Noble William John Arthur Charles James Cavendish-Bentinck, 6th Duke of Portland, K.G., G.C.V.O., P.C.	1857-1943
7.	26 April 1943 	21 March 1977 	The Most Noble William Arthur Henry Cavendish-Bentinck, 7th Duke of Portland, K.G. 	1893-1977
8.	21 March 1977 	13 December 1980	The Most Noble Ferdinand William Cavendish-Bentinck, 8th Duke of Portland, K.B.E., C.M.G., M.C. 	1888-1980
9.	13 December 1980	30 July 1990 	The Most Noble Victor Frederick William Cavendish-Bentinck, 8th Duke of Portland, C.M.G. 	1897-1990
==Other Titles==
===Peerage of England===
*Earl of Portland (1689), 1716-1990
*Viscount Woodstock (1689), 1716-1990
*Baron Cirencester (1689), 1716-1990
===Peerage of Great Britain===
*Marquess of Titchfield (1716), 1716-1990