| Cadogan (Barony) |
William Cadogan - Sun 1st May 1718
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- |
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| Caher (Viscountcy) |
Richard Butler - Mon 15th Jan 1816
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22 June 1858 |
- |
| Callan (Viscountcy) |
George Feilding - Mon 7th Nov 1622
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- |
- |
| Calne (Viscountcy) |
William Petty - Mon 6th Dec 1784
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- |
- |
| of Cambridge (Earldom) |
Edgar - Fri 7th Oct 1667
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- |
- |
| of Cambridge (Earldom) |
James Stuart - Sat 23rd Aug 1664
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- |
- |
| of Cambridge (Earldom) |
Henry - Tue 13th May 1659
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- |
- |
| of Cambridge (Marquessate) |
George Augustus - Thu 9th Dec 1706
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- |
11 June 1727 |
| of Campbell and Cowal (Earldom) |
Archibald Campbell - Thu 23rd Jun 1701
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- |
- |
| Cantelupe (Viscountcy) |
John West - Wed 18th Mar 1761
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- |
- |
| Carlingford (Viscountcy) |
George Carpenter - Fri 1st May 1761
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26 January 1853 |
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| of Carnarvon (Marquessate) |
James Brydges - Sat 29th Apr 1719
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29 September 1789 |
- |
| Carnegie of Kinnaird and Leuchars (Lordship) |
David Carnegie - Wed 22nd Jun 1633
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- |
- |
| Carteret (Viscountcy) |
Grace Carteret - Tue 1st Jan 1715
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13 February 1776 |
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| Cary (Lordship) |
Henry Cary - Sat 14th Nov 1620
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- |
- |
| Castelbar (Barony) |
Thomas Savile - Sun 11th Jun 1628
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- |
- |
| Castle-Cuffe (Viscountcy) |
Otway Cuffe - Wed 4th Dec 1793
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4 November 1934 |
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| Castle Martyr (Barony) |
Henry Boyle - Sat 17th Apr 1756
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- |
- |
| Castlerosse (Viscountcy) |
Valentine Browne - Fri 2nd Jan 1801
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14 February 1952 |
- |
| Castlerosse (Barony) |
Valentine Browne - Wed 14th Feb 1798
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14 February 1952 |
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