Nielsen Hayden genealogy
Isabel de Beaumont
- Aft 1172(
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- 1 Isabel de Beaumont [1] d. Aft 1172
- Gilbert "Strongbow" fitz Gilbert b. Abt 1100 d. 6 Jan 1148
- 2 Richard "Strongbow" fitz Gilbert [1.1] b. Abt 1130 d. Abt 20 Apr 1176
- (Unknown mistress of Richard de Clare)
- 3 (Unknown) de Clare [1.1.1]
- Robert de Quincy d. 1172
- 4 Maud de Quincy [1.1.1.1] b. 1172
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- 4 Maud de Quincy [1.1.1.1]
- 3 (Unknown) de Clare [1.1.1]
- Eve of Leinster b. Abt 1145 d. Aft 1185
- 3 Isabel de Clare [1.1.2] b. 1173 d. 7 Mar 1220
- William Marshal b. Abt 1146 d. 14 May 1219
- 4 Eve Marshal [1.1.2.1] d. Between Jan 1242 and 1246
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- 4 Joan Marshal [1.1.2.2] d. Bef Nov 1234
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- 4 Walter Marshal [1.1.2.3] d. 24 Nov 1245
- 4 William Marshal [1.1.2.4] b. Abt 1190 d. 24 Apr 1231
- 4 Maud Marshal, Marshal Of England [1.1.2.5] b. 1192 d. 27 Mar 1248
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- 4 Isabel Marshal [1.1.2.6] b. 9 Oct 1200 d. 17 Jan 1240
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- 4 Sybil Marshal [1.1.2.7] b. Abt 1204 d. Bef 1238
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- 4 Eve Marshal [1.1.2.1]
- 3 Isabel de Clare [1.1.2]
- 2 Richard "Strongbow" fitz Gilbert [1.1]