Nielsen Hayden genealogy
Gilbert de Lacy

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- 1 Gilbert de Lacy [1] d. Between 12 Aug 1230 and 15 Dec 1230
Isabel le Bigod
- 2 Maud de Lacy [1.1]
d. 11 Apr 1303
Geoffrey de Geneville b. Aft 1225 d. 21 Oct 1314
- 3 Peter de Geneville [1.1.1]
d. Bef 8 Jun 1292
Joan de la Marche d. Bef 18 Apr 1323
- 4 Joan de Geneville [1.1.1.1]
b. 2 Feb 1286 d. 19 Oct 1356 [ =>]
- 4 Joan de Geneville [1.1.1.1]
- 3 Peter de Geneville [1.1.1]
- 2 Margaret de Lacy [1.2]
d. 1256
John de Verdun b. Abt 1226 d. Bef 17 Oct 1274
- 3 Thebaud de Verdun [1.2.1]
b. Abt 1248 d. 24 Aug 1309
Margery de Bohun d. Between 1280 and 1304
- 4 Thebaud de Verdun [1.2.1.1]
b. 8 Sep 1278 d. 27 Jul 1316 [ =>]
- 4 Thebaud de Verdun [1.2.1.1]
- 3 Thebaud de Verdun [1.2.1]
- 2 Maud de Lacy [1.1]