| Mountjoy (Viscountcy) |
Luke Gardiner - Wed 30th Sep 1795
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- |
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| Mountjoy (Viscountcy) |
John Stuart - Tue 1st Mar 1796
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- |
- |
| Mountmorres (Barony) |
Hervey Morres - Tue 4th May 1756
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- |
- |
| Mountmorres (Viscountcy) |
Hervey Morres - Wed 29th Jun 1763
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- |
- |
| of Mountnorris (Earldom) |
Arthur Annesley - Tue 3rd Dec 1793
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23 July 1844 |
- |
| Mountnorris (Barony) |
Francis Annesley - Thu 8th Feb 1629
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- |
- |
| of Mountrath (Earldom) |
Charles Coote - Mon 6th Sep 1660
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- |
- |
| Mount Sandford (Barony) |
Henry Moore Sandford - Thu 31st Jul 1800
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- |
- |
| Mount Stephen (Barony) |
George Stephen - Tue 23rd Jun 1891
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29 November 1921 |
- |
| Mountstuart (Barony) |
Mary Stuart - Fri 3rd Apr 1761
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- |
- |
| Mount Temple (Barony) |
Wilfrid William Ashley - Wed 13th Jan 1932
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3 July 1939 |
- |
| Mount-Temple (Barony) |
William Francis Cowper-Temple - Tue 25th May 1880
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17 October 1888 |
- |
| Mowbray (Barony) |
No Letters Patent
|
- |
- |
| Moylan (Barony) |
Daniel Michael Gerald Moylan - Wed 9th Sep 2020
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- |
- |
| Moyle (Barony) |
Arthur Moyle - Thu 23rd Jun 1966
|
23 December 1974 |
- |
| Moyne (Barony) |
Walter Edward Guinness - Thu 21st Jan 1932
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- |
- |
| Moynihan (Barony) |
Berkeley George Andrew Moynihan - Tue 19th Mar 1929
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- |
- |
| Moyo (Barony) |
Dambisa Felicia Moyo - Tue 8th Nov 2022
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- |
- |
| Moyola (Barony) |
James Dawson Chichester-Clark - Tue 20th Jul 1971
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17 May 2002 |
- |
| Moyorta (Barony) |
Daniel O'Brien - Mon 17th Jul 1662
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- |
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