Hereditary peerage subsidiary to another created by the same letters patent


Peerages of this type

Title Letters patent Extinct Merged into crown
of Milford Haven (Earldom) George Augustus - Thu 9th Dec 1706 - 11 June 1727
Milton (Viscountcy) Joseph Damer - Fri 18th May 1792 - -
Milton (Viscountcy) William Fitzwilliam - Tue 6th Sep 1746 - -
Milton (Viscountcy) William Fitzwilliam - Tue 21st Jul 1716 - -
Milton (Barony) Henry Sydney - Sat 9th Apr 1689 - -
Molesworth (Barony) Robert Molesworth - Thu 16th Jul 1716 - -
Monck (Barony) George Monck - Wed 7th Jul 1660 6 October 1688 -
Monson (Barony) William Monson - Wed 23rd Aug 1628 - -
Montagu (Barony) Edward Montagu - Mon 12th Jul 1660 - -
Montgomery (Viscountcy) William Herbert - Mon 24th Mar 1687 8 March 1748 -
Monthermer (Viscountcy) Ralph Montagu - Sat 9th Apr 1689 - -
of Monthermer (Marquessate) George Montagu - Wed 5th Nov 1766 - -
of Monthermer (Marquessate) Ralph Montagu - Tue 14th Apr 1705 - -
Mordaunt (Barony) John Mordaunt - Thu 10th Jul 1659 - -
Morpeth (Viscountcy) Charles Howard - Wed 20th Apr 1661 - -
Mountcastle (Barony) James Hamilton - Fri 2nd Dec 1701 - -
of Mount Charles (Earldom) Henry Conyngham - Mon 15th Jan 1816 - -
Mount Charles (Viscountcy) Henry Conyngham - Tue 21st Nov 1797 - -
Mountjoy (Viscountcy) John Stuart - Tue 1st Mar 1796 - -
Moyorta (Barony) Daniel O'Brien - Mon 17th Jul 1662 - -