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