- Isley
- Islington
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1st Baron, of Islington, co. London (John Poynder) b. 31 Oct 1866, d. 6 Dec 1936Baroness (Anne Beauclerk) b. c 1869, d. 7 Aug 1958
- Islwyn
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Baron, of Casnewydd in the County of Gwent (Royston John) b. 9 Jun 1925, d. 19 Dec 2003
- Ismailoglu
- Ismay
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1st Baron, of Wormington, co. Gloucester (Hastings Lionel) b. 21 Jun 1887, d. 17 Dec 1965Ada b. 1872Charles Bower b. 1874Charlotte b. 1874Dora b. 1872Dorothy Alys b. 12 Apr 1895Ethel Sealby b. 1870, d. 1952Evelyn Constance b. 17 Jul 1897, d. 9 Aug 1940Hastings Lionel, 1st and last Baron Ismay b. 21 Jun 1887, d. 17 Dec 1965Henry Bruce b. 3 Apr 1891, d. 1 Oct 1891James Hainsworth b. 1867, d. 24 Jan 1930Jane Margaret b. c 12 Oct 1885, d. 1951
Joseph Bruce b. 12 Dec 1862, d. 17 Oct 1937
Margaret b. c 1838Margaret Alice b. 22 Mar 1869, d. 18 Aug 1901Margaret Bruce b. 29 Dec 1889, d. 15 May 1967Mary b. 1860Mary Quenelda Stanley b. 28 Jul 1929Muriel Harriet b. 1881Olive Moreton b. 28 Sep 1904, d. 12 Nov 1987Pamela Muriel b. 8 Sep 1913Sarah Field b. 16 May 1928Stanley b. 1 Jul 1848, d. 7 Jun 1914Susan Katherine Lucy b. 29 May 1922, d. 31 Jan 2016Thomas Bruce b. 18 Feb 1894, d. 27 Apr 1954Thomas Henry b. 7 Jan 1837, d. 23 Nov 1899
Viola Bruce b. 18 Mar 1908, d. 1987William d. 1879Winifred Margaret b. 30 Aug 1893, d. 23 Feb 1942 - Isnards
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Marguerite des b. 19 Dec 1910
- Isney
- Isny und Altshausen
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Manegold II Graf von b. c 1040, d. 7 Feb 1109Walther von d. b 10 Jan 1109Wolfrad IV Graf von b. 1076, d. 1130Wolfrad V Graf von b. c 1130, d. 1181
- Isoard
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Sophia Carolina b. 4 Dec 1820, d. 25 Dec 1877
- Isola Parodi
- Isola
- Isolani
- Isolani-Smyth
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Teresa Philippa Lacy b. 19 Nov 1956
- Ison
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Ada b. 19 May 1891, d. 1972Alice b. c 1906Annabel Pauline b. Mar 1980Arthur Edgar b. 19 Jan 1907, d. 15 Jan 1971Aubrey d. 2007Christine S. b. 1941Constance Eliza b. 3 Sep 1904, d. Nov 1986Daniel Rodney b. May 1987Daniel Spencer b. Sep 1966Elsie b. c 1896Ernest Frederick b. 1903Ernest Luther b. 31 Jan 1866Harriett b. c 1907Herbert William Hastings b. c 1898Isobel Ester b. Aug 1972Jennifer Louise b. Dec 1991Jessica Grace b. May 2001John d. Feb 1811John V. b. Dec 1936Joshua James b. May 1999Leonard b. 27 Dec 1889Luke James b. Apr 2010Mary Frances b. 1912, d. Mar 1969Milly b. c 1893Philip Nathan b. Jun 1968Rodney Arthur b. Jul 1939Samuel James b. Jul 1990Susan Alexandra b. 1952
- Israel
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Barrow Helbert (Sir) b. 24 Jan 1823, d. 20 Jun 1887Eliza Helbert b. 1780, d. 1829Fanny b. 1793George Helbert b. 1801, d. 18 Jul 1832Henrietta d. 14 Mar 1860Israel b. 1750, d. 1822Maria b. 1764, d. 18 Jul 1832Matilda Helbert b. 1801, d. 1856Samuel Helbert Ellis b. 1787
- Issa
- Issacson
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Jane Elizabeth Catherine b. 25 Nov 1965John Alexander b. 1992Sophie Claire b. 1990
- Issakov
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Anya Simone b. 17 Jan 2000Serge b. 7 Jan 1961
- Issakov-Mellor
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Anna Marica b. 13 Jul 1960
- Issakow
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Elisabeth b. 10 Nov 1947Irene b. 28 Mar 1920, d. 23 Mar 2010Serge b. 26 Jun 1919, d. 17 Feb 2006
- Issarescu
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Stefan Virgil b. 5 Oct 1906
- Isselmuden
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Johanna Judith van b. 28 Jul 1758, d. 15 Jul 1824
- Issit
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Marion d. 1919
- Issodun
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Raoul d' d. 1212
- Issoudon
- Issoudun
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Comtesse d' (Charlotte Marie Augustine) b. 13 Jul 1808, d. 13 Jul 1886
Ralph d' d. 1 May 1219 - Istace
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Craig Stephen b. 1978Dana b. 1983Drew b. 1983Linda Ann b. 1954Winnifred Alice b. 1932
- Istas
- Isted
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Ambrose d. 13 May 1881Eleanor Elizabeth d. 12 Oct 1851Frances Elizabeth b. 9 Jan 1810, d. 25 Dec 1899Mary b. 1759, d. 1834
- Istria
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Hunfried von d. c 823Poppo III Margrave von d. c 1095Ulric I of d. 1070Ulric I, Count of Istria d. 1070
- Istvan
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Eva b. 4 Nov 1922, d. 19 Dec 1994Istvan de Nemes-Szakacs b. 27 Apr 1886, d. 22 Aug 1986
- Italia
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Maria Pia d' b. 16 Oct 1847, d. 5 Jul 1911
Maria Pia d' b. 24 Sep 1934
Re d' (Conrad) b. 12 Feb 1074, d. 27 Jul 1101Umberto I d' b. 14 Mar 1844, d. 29 Jul 1900
Umberto II d' b. 15 Sep 1904, d. 18 Mar 1983
Vittorio Emanuele III d' b. 11 Nov 1869, d. 28 Dec 1947
- Italiaander
- Italy
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Adalbert of b. bt 932 - 936, d. c 972Adelaide of b. bt 931 - 932, d. 16 Dec 999Berengar I of b. c 842, d. 7 Apr 927Berengar II of b. c 900, d. 6 Aug 966Berengar of b. c 842, d. 7 Apr 927Bernard of b. c 799, d. 17 Aug 818Desiderius of b. c 715, d. 774Gerberga of b. c 750, d. a 774Gisella of b. c 880, d. bt 910 - 913Guy of d. 894Hugh of d. 10 Apr 948Lambert of d. 898Lothair of d. 950Louis of b. c 880, d. 28 Jun 928Rosela of b. 960, d. 25 Jan 1003Rudolph I of b. c 895, d. 11 Jul 937
Vittorio Emanuele II of b. 14 Mar 1820, d. 9 Jan 1878
Vittorio Emanuele of b. 12 Feb 1937 - Itchingham
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Jane b. c 1645, d. 1712
- Itchins
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Thora Edith b. 24 Sep 1915, d. 30 Apr 2002
- Ithel
- Ithell
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Anne d. 1644
- Ithuralde
- Itter
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Alfred John b. 1842Alice Bertha b. 1901Arthur Werner b. 1854, d. 1910Bertha b. 1872, d. 1938Charles Edward b. 1850Dorothy Mary b. 1903Frances b. 20 Jun 1844, d. 7 Mar 1924Harold John b. 1904Henry b. 10 Apr 1803, d. 9 Apr 1866Louisa d. 1900Nicholas b. 1846Peter Frederick b. 1843, d. 1843
- Ittersum
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Baroness d' (Ida Magdalen) d. 18 Nov 1728Elisabeth d' b. 1565, d. 17 Aug 1615Ida Magdalen d', Baroness d'Ittersum d. 18 Nov 1728Robert, Heer van Nijenhuis d. 3 Oct 1710Wolf d', Baron d'Ittersum b. 1515, d. 1564
- Iturbe y del Villar
- Iturbe y Scholtz-Hermensdorff
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María de La Piedad, 2° Marquesa de Belvis de Las Navas b. 31 Aug 1892, d. 26 Nov 1990
- Iturralde
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Anna b. 17 Dec 1961
- Iturribarria