Isabeau De Neufchatel 
Isabeau De was born after 1448. Isabeau De's father was Jean De Neufchatel and her mother is Margardia De Castro. Her paternal grandparents were Thibault VIII De Neufchatel and Agnes De Montfaucon; her maternal grandparents are Fernando De Castro and Maria De Souza. She had a brother and two sisters, named Fernando De, Jeanne De and Avoye De. She was the second youngest of the four children. She died after August 11th, 1479.General Notes
SOURCES: "Ancestors of Valery Giscard d'Estaing", http://www.geneastar.org.
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Ancestor Pedigree Chart
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*There are earlier generations for the ancestor(s) indicated. See their page(s) for details (click name)
- b.~ 1310 d.1366
- b.~ 1337 d.<21 Jan 1401
- b.~ 1317 d.~ 1342
- b.~ 1361 d.28 Sep 1396 in Nikopolis--killed.
- b.< 1303
- d.~ 1397
- b.~ 1308
- b.~ 1386 d.21 May 1459
- b.~ 1280 d.> 1351
- b.~ 1327 d.1365
- b.~ 1305 d.~ 1335
- b.~ 1361 d.Jun 1413
- b.~ 1300 d.17 May 1364
- b.~ 1338 d.> 1375
- b.1322 d.04 May 1346
- b.~ 1410 d.Sep 1489
- b.~ 1297 d.1367
- b.~ 1326 d.02 Nov 1397
- b.~ 1298 d.1377
- b.~ 1360 d.28 Sep 1396 in Nikopolis
- b.1312 d.26 Feb 1362
- b.~ 1333 d.Jul 1392
- b.~ 1312 d.25 Dec 1350
- b.~ 1393 d.1439
- b.~ 1305 d.02 Oct 1362
- b.1330 d.>Mar 1405
- b.~ 1305
- b.~ 1363
- b.~ 1285 d.1335
- b.~ 1330
- b.> 1292 d.19 May 1360
- b.> 1448 d.>11 Aug 1479
- b.~ 1385
- b.~ 1420
- b.~ 1390
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They had a son named Gerard De.
