Hereditary peerage subsidiary to another created by the same letters patent


Peerages of this type

Title Letters patent Extinct Merged into crown
Milton (Barony) 9 April 1689 - -
Milton (Viscountcy) 21 July 1716 - -
Milton (Viscountcy) 6 September 1746 - -
Milton (Viscountcy) 18 May 1792 - -
Molesworth (Barony) 16 July 1716 - -
Monck (Barony) 7 July 1660 6 October 1688 -
Monson (Barony) 23 August 1628 - -
Montagu (Barony) 12 July 1660 - -
Montgomery (Viscountcy) 24 March 1687 8 March 1748 -
Monthermer (Viscountcy) 9 April 1689 - -
of Monthermer (Marquessate) 5 November 1766 - -
of Monthermer (Marquessate) 14 April 1705 - -
Mordaunt (Barony) 10 July 1659 - -
Morpeth (Viscountcy) 20 April 1661 - -
Mountcastle (Barony) 2 December 1701 - -
Mount Charles (Viscountcy) 21 November 1797 - -
of Mount Charles (Earldom) 15 January 1816 - -
Mountjoy (Viscountcy) 1 March 1796 - -
Moyorta (Barony) 17 July 1662 - -
of Munster (Earldom) 20 May 1789 - 26 June 1830