| Moynihan (Barony) |
Berkeley George Andrew Moynihan - Tue 19th Mar 1929
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- |
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| Moyo (Barony) |
Dambisa Felicia Moyo - Tue 8th Nov 2022
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- |
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| Moyola (Barony) |
James Dawson Chichester-Clark - Tue 20th Jul 1971
|
17 May 2002 |
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| Moyorta (Barony) |
Daniel O'Brien - Mon 17th Jul 1662
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- |
- |
| Muir-Mackenzie (Barony) |
Kenneth Augustus Muir Mackenzie - Tue 29th Jun 1915
|
22 May 1930 |
- |
| Muirshiel (Viscountcy) |
John Scott Maclay - Thu 16th Jul 1964
|
17 August 1992 |
- |
| of Mulgrave (Earldom) |
Edmund Sheffield - Sat 7th Feb 1626
|
19 October 1735 |
- |
| Mulgrave (Barony) |
Constantine John Phipps - Wed 7th Jul 1790
|
10 October 1792 |
- |
| of Mulgrave (Earldom) |
Henry Phipps - Mon 7th Sep 1812
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- |
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| Mulgrave (Barony) |
Constantine Phipps - Thu 3rd Sep 1767
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- |
- |
| Mulgrave (Barony) |
Henry Phipps - Wed 13th Aug 1794
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- |
- |
| Mulley (Barony) |
Frederick William Mulley - Mon 30th Jan 1984
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15 March 1995 |
- |
| Muncaster (Barony) |
Josslyn Francis Pennington - Sat 11th Jun 1898
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30 March 1917 |
- |
| Muncaster (Barony) |
John Pennington - Tue 21st Oct 1783
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- |
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| of Munster (Dukedom) |
Ehrengard Melusine von der Schulenburg - Thu 16th Jul 1716
|
10 May 1743 |
- |
| of Munster (Earldom) |
George FitzClarence - Sat 4th Jun 1831
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30 December 2000 |
- |
| of Munster (Earldom) |
William Henry - Wed 20th May 1789
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- |
26 June 1830 |
| Murphy (Barony) |
Elaine Murphy - Thu 17th Jun 2004
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- |
- |
| Murphy of Torfaen (Barony) |
Paul Peter Murphy - Tue 20th Oct 2015
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- |
- |
| Murray (Barony) |
John Murray - Fri 18th Aug 1786
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8 May 1957 |
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