| of Dundonald (Earldom) |
William Cochrane - Sun 12th May 1669
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- |
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| Dunedin (Barony) |
Andrew Graham Murray - Thu 9th Mar 1905
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21 August 1942 |
- |
| Dunedin (Viscountcy) |
Andrew Graham Murray - Wed 17th Feb 1926
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21 August 1942 |
- |
| Dunfermline (Barony) |
James Abercromby - Fri 7th Jun 1839
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2 July 1868 |
- |
| Dungan (Barony) |
William Dungan - Tue 14th Feb 1662
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- |
- |
| Dungan (Viscountcy) |
William Dungan - Tue 14th Feb 1662
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- |
- |
| of Dungannon (Earldom) |
Ehrengard Melusine von der Schulenburg - Thu 16th Jul 1716
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10 May 1743 |
- |
| of Dungannon (Marquessate) |
Ehrengard Melusine von der Schulenburg - Thu 16th Jul 1716
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10 May 1743 |
- |
| Dungannon (Viscountcy) |
Marcus Trevor - Mon 28th Aug 1662
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- |
- |
| Dungannon (Viscountcy) |
Arthur Hill-Trevor - Mon 17th Feb 1766
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- |
- |
| Dungarvan (Viscountcy) |
Richard Boyle - Fri 16th Oct 1620
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- |
- |
| Dunglas (Lordship) |
Alexander Home - Fri 4th Mar 1605
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- |
- |
| Dunira (Barony) |
Henry Dundas - Fri 24th Dec 1802
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- |
- |
| Dunkeron (Viscountcy) |
Henry Petty - Sat 29th Apr 1719
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- |
- |
| Dunkeron (Barony) |
John Petty - Thu 7th Oct 1751
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- |
- |
| Dunleath (Barony) |
John Mulholland - Mon 29th Aug 1892
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- |
- |
| Dunlo (Viscountcy) |
William Power Keating Trench - Tue 6th Jan 1801
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- |
- |
| Dunlop (Barony) |
Andrew James Dunlop - Tue 26th May 2015
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- |
- |
| Dunluce (Viscountcy) |
Randal MacDonnell - Tue 26th Jun 1618
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- |
- |
| Dunluce (Viscountcy) |
Randal William MacDonnell - Sun 19th Jun 1785
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