Dukedom

All Ranks

Dukedom Peerages

Title Letters patent Extinct Merged into crown
of Marlborough (Dukedom) John Churchill - Thu 14th Dec 1702 - -
of Monmouth (Dukedom) James Scott - Wed 14th Feb 1663 - -
of Montagu (Dukedom) Ralph Montagu - Tue 14th Apr 1705 - -
of Montagu (Dukedom) George Montagu - Wed 5th Nov 1766 - -
of Montrose (Dukedom) James Graham - Sun 24th Apr 1707 - -
of Munster (Dukedom) Ehrengard Melusine von der Schulenburg - Thu 16th Jul 1716 10 May 1743 -
of Newcastle under Line (Dukedom) Thomas Pelham Holles - Wed 17th Nov 1756 25 December 1988 -
of Newcastle upon Tyne (Dukedom) William Cavendish - Mon 16th Mar 1665 26 July 1691 -
of Newcastle upon Tyne (Dukedom) John Holles - Fri 14th May 1694 15 July 1711 -
of Newcastle upon Tyne (Dukedom) Thomas Pelham Holles - Sun 11th Aug 1715 17 November 1768 -
of Norfolk (Dukedom) John Howard - Sat 28th Jun 1483 - -
of Northumberland (Dukedom) George FitzRoy - Tue 6th Apr 1683 28 June 1716 -
of Northumberland (Dukedom) Hugh Percy - Wed 22nd Oct 1766 - -
of Ormond (Dukedom) James Butler - Mon 9th Nov 1682 - -
of Ormond (Dukedom) James Butler - Wed 30th Mar 1661 - -
of Portland (Dukedom) Henry Bentinck - Mon 6th Jul 1716 30 July 1990 -
of Portsmouth (Dukedom) Louise de Keroualle - Sat 19th Aug 1673 3 November 1734 -
of Queensberry (Dukedom) William Douglas - Fri 3rd Nov 1684 - -
of Richmond (Dukedom) Ludovick Stuart - Wed 17th May 1623 16 February 1624 -
of Richmond (Dukedom) James Stuart - Thu 8th Aug 1641 - -