| Lifford (Barony) |
James Hewitt - Sat 9th Jan 1768
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| Ligonier (Earldom) |
John Ligonier - Wed 10th Sep 1766
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- |
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| Ligonier (Viscountcy) |
John Ligonier - Wed 21st Dec 1757
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| Ligonier (Barony) |
John Ligonier - Wed 27th Apr 1763
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| Ligonier (Viscountcy) |
John Ligonier - Thu 20th May 1762
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| Ligonier (Earldom) |
Edward Ligonier - Fri 19th Jul 1776
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| Lilford (Barony) |
Thomas Powys - Thu 26th Oct 1797
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| Lilley (Barony) |
Peter Bruce Lilley - Mon 18th Jun 2018
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| Limerick (Viscountcy) |
Edmund Henry Pery - Mon 29th Dec 1800
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| of Limerick (Earldom) |
William Dungan - Wed 2nd Jan 1686
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| Limerick (Viscountcy) |
James Hamilton - Sat 13th May 1719
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| of Limerick (Earldom) |
Edmund Henry Pery - Thu 20th Jan 1803
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| of Lincoln (Earldom) |
Edward Clinton - Sun 4th May 1572
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| of Lincolnshire (Marquessate) |
Charles Robert Wynn-Carington - Mon 26th Feb 1912
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13 June 1928 |
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| Lindgren (Barony) |
George Samuel Lindgren - Thu 9th Feb 1961
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8 September 1971 |
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| Lindley (Barony) |
Nathaniel Lindley - Thu 10th May 1900
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9 December 1921 |
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| of Lindsay (Earldom) |
John Lindsay - Sun 8th May 1633
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| Lindsay of Balneil (Lordship) |
Alexander Lindsay - Mon 9th Jan 1651
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- |
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| Lindsay of Birker (Barony) |
Alexander Dunlop Lindsay - Tue 13th Nov 1945
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| of Lindsey (Marquessate) |
Robert Bertie - Tue 21st Dec 1706
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8 February 1809 |
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