- Castle-Durrow
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10th Baron, co. Kilkenny (Llowarch Robert) b. 9 Jul 1870, d. 30 Aug 193611th Baron, co. Kilkenny (Desmond Llowarch Edward) b. 9 Jul 1905, d. 5 Dec 199512th Baron, co. Kilkenny (Michael Llowarch Warburton) b. 9 Dec 19351st Baron, co. Kilkenny (William) b. 11 Mar 1685, d. 29 Apr 17462nd Baron, co. Kilkenny (Henry) b. b 1710, d. 27 Jun 17523rd Baron, co. Kilkenny (William) b. 25 Jun 1744, d. 30 Aug 17804th Baron, co. Kilkenny (William) b. 16 Nov 1767, d. 6 Jan 18025th Baron, co. Kilkenny (Henry Jeffery) b. 6 Nov 1776, d. 4 May 18476th Baron, co. Kilkenny (Henry) b. 17 Jun 1806, d. 3 Aug 18717th Baron, co. Kilkenny (Henry Jeffery) b. 26 Mar 1829, d. 14 Dec 18828th Baron, co. Kilkenny (William Spencer) b. 23 Mar 1830, d. 26 Nov 19069th Baron, co. Kilkenny (Robert Thomas) b. 1 Apr 1836, d. 9 Mar 1919Baroness (Edith) b. c 1694Baroness (Elizabeth) d. 10 Feb 1759
- Castlecomer
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1st Viscount, co. Kilkenny (Christopher) b. 19 Aug 1656, d. 15 Sep 17072nd Viscount, co. Kilkenny (Christopher) b. 2 Mar 1683/84, d. 23 Jun 17193rd Viscount, co. Kilkenny (Christopher) b. 1717, d. 8 May 17364th Viscount, co. Kilkenny (George) b. 22 Sep 1687, d. 25 Jun 17515th Viscount, co. Kilkenny (John) b. 24 May 1725, d. 12 Jan 1784Viscount (John) b. 23 Apr 1753, d. b 1784Viscountess (Agnes Elizabeth) b. 1730, d. 21 Apr 1781Viscountess (Elizabeth) b. 1660, d. 13 Nov 1731Viscountess (Frances) d. 27 Jun 1756Viscountess (Susanna) d. 10 Sep 1757
- Castlecuffe
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1st Viscount (Otway) d. 9 Aug 18042nd Viscount (John Otway) b. 20 Feb 1788, d. 22 Nov 18203rd Viscount (Otway O'Conner) b. 12 Oct 1818, d. 1 Apr 18654th Viscount (William Ulick O'Connor) b. 10 Jul 1845, d. 15 Sep 18985th Viscount (Hamilton John Agmondesham) b. 30 Aug 1848, d. 4 Nov 1934
- Castlehaven
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1st Baroness, of Castlehaven, co. Cromartie (Anne) b. 21 Apr 1829, d. 25 Nov 18881st Earl of, co. Cork (George) b. c 1551, d. 20 Feb 1616/172nd Baron, of Castlehaven, co. Cromartie (Francis Mackenzie) b. 3 Aug 1852, d. 24 Nov 18932nd Earl of, co. Cork (Mervyn) b. c 1593, d. 14 May 16313rd Baroness, of Castlehaven, co. Cromartie (Sibell Lilian) b. 14 Aug 1878, d. 20 May 19623rd Earl of, co. Cork (James) b. c 1617, d. 11 Oct 16844th Baron, of Castlehaven, co. Cromartie (Roderick Grant Francis) b. 24 Oct 1904, d. 13 Dec 19894th Earl of, co. Cork (Mervyn) d. 2 Nov 16865th Earl of, co. Cork (James) d. 9 Aug 17006th Earl of, co. Cork (James) b. b 1700, d. 12 Oct 17407th Earl of, co. Cork (James) b. 15 Apr 1723, d. 6 May 17698th Baron of, co. Cork (John Talbot) b. 2 Aug 1724, d. 22 Apr 1777Countess of (Anne) d. Jun 1733Countess of (Anne) b. May 1580, d. c 8 Oct 1647Countess of (Elizabeth) d. c Mar 1678/79Countess of (Elizabeth) d. bt Sep 1720 - Dec 1720Countess of (Elizabeth) b. 1590, d. a 8 Dec 1644Countess of (Elizabeth) b. 15 Sep 1693, d. 24 Jun 1743Countess of (Mary) d. c Mar 1710/11
- Castlehill
- Castlelaw
- Castlemaine of Moydrum
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1st Baron, co. Westmeath (William) b. 28 Aug 1761, d. 7 Jan 18392nd Baron, co. Westmeath (Richard) b. 14 May 1767, d. 18 Apr 18403rd Baron, co. Westmeath (Richard) b. 17 Nov 1791, d. 4 Jul 18694th Baron, co. Westmeath (Richard) b. 25 Jul 1826, d. 26 Apr 18925th Baron, co. Westmeath (Albert Edward) b. 26 Mar 1863, d. 6 Jul 19376th Baron, co. Westmeath (Robert Arthur) b. 19 Apr 1864, d. 31 May 19547th Baron, co. Westmeath (John Michael Schomberg Staveley) b. 10 Mar 1904, d. 31 Jul 19738th Baron, co. Westmeath (Roland Thomas John) b. 22 Apr 1943Baroness (Anne) b. 1768, d. 4 Nov 1852Baroness (Annie Evelyn) b. 17 Apr 1873, d. 14 Nov 1955Baroness (Florinda) b. 3 Aug 1766, d. 9 Feb 1851Baroness (Louisa Matilda) b. 10 Feb 1836, d. 31 Jan 1892Baroness (Margaret) d. 27 Jan 1867Baroness (Rebecca Ellen) d. 25 Jan 1978
- Castlemaine
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1st Earl of (Roger) b. 4 Sep 1634, d. 28 Jul 17051st Viscount (William) b. 28 Aug 1761, d. 7 Jan 18391st Viscount, co. Kerry (Richard) b. 5 Feb 1679/80, d. Mar 1749/502nd Viscount, co. Kerry (John) b. 22 Oct 1712, d. 17 Sep 1784Countess of (Dorothy) b. c 1682, d. 23 Feb 1743/44Viscount (Richard) b. b 1712, d. 19 Feb 1733/34Viscountess (Dorothy) b. c 1682, d. 23 Feb 1743/44Viscountess (Florinda) b. 3 Aug 1766, d. 9 Feb 1851
- Castlemains and Galston
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1st Lord (John) b. 8 Aug 1650, d. 25 Jan 1714/15
- Castleman
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Alice b. 31 May 1697, d. 1780Amanda Lucy b. 12 Oct 1967Edith Mary d. 30 Jul 1876Emily Annie d. 3 Oct 1853Emma Jane d. 4 Oct 1879Jeremy M. b. 1975Jonathan Willian b. 1971Kim Lavonne b. 1954Sarah Victoria b. 2 Aug 1943, d. 1979
- Castlereagh
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10th Viscount (Frederick Aubrey) b. 6 Sep 19721st Viscount (Robert) b. 27 Sep 1739, d. 8 Apr 18212nd Viscount (Robert) b. 18 Jun 1769, d. 12 Aug 18223rd Viscount (Charles William) b. 18 May 1778, d. 6 Mar 18544th Viscount (Frederick William Robert) b. 7 Jul 1805, d. 25 Nov 18725th Viscount (George Henry Robert Charles William) b. 26 Apr 1821, d. 6 Nov 18846th Viscount (Charles Stewart) b. 16 Jul 1852, d. 8 Feb 19157th Viscount (Charles Stewart Henry) b. 13 May 1878, d. 11 Feb 19498th Viscount (Edward Charles Robert) b. 18 Nov 1902, d. 17 Oct 19559th Viscount (Alexander Charles Robert) b. 7 Sep 1937, d. 20 Jun 2012Viscount (Frederick Aubrey) b. 6 Sep 1972Viscount (Robert) b. 18 Jun 1769, d. 12 Aug 1822Viscountess (Frances) b. c 1751, d. 18 Jan 1833
- Castlerosse
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1st Baron (Valentine) b. 16381st Baron (Valentine) b. Jan 1754, d. 3 Oct 18121st Viscount (Valentine) b. Jan 1754, d. 3 Oct 18122nd Baron (Nicholas) d. 26 Apr 17202nd Baron (Valentine) b. 15 Jan 1788, d. 31 Oct 18532nd Viscount (Valentine) b. 15 Jan 1788, d. 31 Oct 18533rd Baron (Thomas) b. 15 Jan 1789, d. 26 Dec 18713rd Baron (Valentine) b. Mar 1695, d. 30 Jun 17363rd Viscount (Thomas) b. 15 Jan 1789, d. 26 Dec 18714th Baron (Thomas) b. 1726, d. 9 Sep 17954th Baron (Valentine Augustus) b. 16 May 1825, d. 9 Feb 19054th Viscount (Valentine Augustus) b. 16 May 1825, d. 9 Feb 19055th Baron (Valentine Charles) b. 1 Dec 1860, d. 14 Nov 19415th Baron (Valentine) b. Jan 1754, d. 3 Oct 18125th Viscount (Valentine Charles) b. 1 Dec 1860, d. 14 Nov 19416th Baron (Valentine Edward Charles) b. 29 May 1891, d. 20 Sep 19436th Viscount (Valentine Edward Charles) b. 29 May 1891, d. 20 Sep 19437th Baron (Gerald Ralph Desmond) b. 20 Dec 1896, d. 14 Feb 19527th Viscount (Gerald Ralph Desmond) b. 20 Dec 1896, d. 14 Feb 1952Viscount (Valentine Edward Charles) b. 29 May 1891, d. 20 Sep 1943Viscountess (Jessica Doris) b. 4 Nov 1900, d. 12 Dec 1942
- Castles
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Alicia b. 17 Mar 1805Louisa Amelia d. 25 Jun 1938
- Castleton of Sandbeck
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1st Earl, co. York (James) d. 23 May 17231st Viscount, co. York (James) d. 23 May 1723
- Castleton
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10th Baronet, of St. Edmondsbury, co. Suffolk (John) d. 11 Jun 178811th Baronet, of St. Edmondsbury, co. Suffolk (Edward) b. c 1706, d. 15 Oct 179412th Baronet, of St. Edmondsbury, co. Suffolk (Edward) d. 17 Nov 18101st Baronet, of St. Edmondsbury, co. Suffolk (William) b. c 1590, d. c 16431st Viscount, co. Limerick (Nicholas) b. c 1561, d. 17 May 16312nd Baronet, of St. Edmondsbury, co. Suffolk (John) d. c Nov 16772nd Viscount, co. Limerick (Nicholas) b. c 1595, d. 13 Nov 16403rd Baronet, of St. Edmondsbury, co. Suffolk (John) b. 4 Aug 1644, d. c Jun 17053rd Viscount, co. Limerick (Nicholas) b. c 1627, d. 16414th Baronet, of St. Edmondsbury, co. Suffolk (Robert) b. 6 Nov 1659, d. c 17104th Viscount, co. Limerick (Peregrine) b. c 1628, d. 16505th Baronet, of St. Edmondsbury, co. Suffolk (Philip) b. 26 Jul 1663, d. c Jul 17245th Viscount, co. Limerick (George) b. 12 Oct 1631, d. 27 May 17146th Baronet, of St. Edmondsbury, co. Suffolk (Charles) b. 4 Sep 1659, d. Sep 17456th Viscount, co. Limerick (James) d. 23 May 17237th Baronet, of St. Edmondsbury, co. Suffolk (Charles) d. 22 Oct 17498th Baronet, of St. Edmondsbury, co. Suffolk (John) b. c 1698, d. 7 Nov 17779th Baronet, of St. Edmondsbury, co. Suffolk (William) b. c 1701, d. 16 Jan 1788Blair Jason b. 11 Jul 1970Blake Jason b. 16 Dec 2004Bridget b. 3 Jan 1649/50, d. c Mar 1726Charles, 6th Bt. b. 4 Sep 1659, d. Sep 1745Charles, 7th Bt. d. 22 Oct 1749Edward, 11th Bt. b. c 1706, d. 15 Oct 1794Edward, 12th Bt. d. 17 Nov 1810Elizabeth d. c Nov 1748Elizabeth d. 12 Oct 1772Fannie Chaffee b. 23 Jul 1912John, 10th Bt. d. 11 Jun 1788John, 2nd Bt. d. c Nov 1677John, 3rd Bt. b. 4 Aug 1644, d. c Jun 1705John, 8th Bt. b. c 1698, d. 7 Nov 1777Joshua Allan b. 1993Julia Dent b. 27 Jan 1949Kam Blair b. 25 Jan 2007Louise Caroline b. 7 Jan 1964Margaret d. c Aug 1702Melissa Anne b. 25 May 1971Philip, 5th Bt. b. 26 Jul 1663, d. c Jul 1724Robert, 4th Bt. b. 6 Nov 1659, d. c 1710Sarah d. 3 Feb 1727Viscountess (Frances) d. 1652Viscountess (Grace) d. 16 Nov 1667Viscountess (Sarah) d. c Oct 1717William d. 24 May 1616William, 1st Bt. b. c 1590, d. c 1643William, 9th Bt. b. c 1701, d. 16 Jan 1788
- Castletown of Upper Ossory
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1st Baron, in the Queen's County (John) b. 23 Sep 1807, d. 22 Jan 18832nd Baron, in the Queen's County (Bernard Edward Barnaby) b. 29 Jul 1848, d. 29 May 1937Baroness (Augusta Mary) b. 1810, d. 3 Jun 1899Baroness (Emily Ursula Clare) b. 18 Jul 1853, d. 11 Mar 1927
- Castley
- Castlyn
- Casto
- Caston
-
Jane Berkeley d. 1977
- Castonguay
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Dylan Martin Nelson b. 1984, d. 2000Majessa Lillian b. 1983Marina June b. 16 Jun 1956
- Castravelli
-
Sophie Marie d. 1985
- Castres
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Comte de (Bouchard VII) d. 16 Nov 1371
- Castries
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Comte de (Maximilian) b. 21 Dec 1908Comte de (Rene) d. 1950Duc de (Edmond Eugene Philippe Hercule) d. 2 Aug 1866
- Castrillo Gonzáles
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Marizol b. 14 May 1977
- Castrillo y Sanjuan
- Castrillo
- Castro Canto e Mello
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Domitila de d. 3 Nov 1867
- Castro Cardoso dos Santos
- Castro des Duques de Grimaldi
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Alfonso di b. 7 Aug 1936, d. 24 Mar 1994
- Castro Freire Rocheta
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Gonçalo de b. 1975Rita de b. 1978
- Castro Freire
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Alexander Anthony de b. 2 Mar 1959Carolina de b. 1986Catherine Maria de b. 30 Aug 1954Diogo de b. 1986Jorge Leonardo de b. 17 Mar 1956Leonardo Rey Calaco de d. 1970Manuel Filipe de b. 1984Margaret Heather de b. 1920, d. 2005Martin Afonso de b. 1986Martin Anthony de b. 8 Jan 1952Philippa Mary de b. 4 Sep 1949