William Plantagenet of Windsor 
William was born on June 24th, 1348 in Windsor Castle, Berkshire, England. William's father was Edward III Plantagenet King of England and his mother was Phillipa de Hainault. His paternal grandparents were Edward II of Caernarvon King of England and Isabella de France; his maternal grandparents were Guillaume III le Bon Ct de Hainault & Holland and Jeanne de Valois. He had seven brothers and five sisters, named Edward the Black Prince, Lionel, John of Gaunt, Edmund, Thomas, Thomas of Woodstock, William, Isabella, Mary, Margaret, Joan (Joanna) and Blanche. He had two half-brothers and two half-sisters, named Sir John, Nicholas de Lytleton, Jane and Joan. He died at 3 months old in September 1348.-
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.24 Dec 1166 in Beaumont Palace, Oxford, England d.19 Oct 1216 in Newark Castle, Lincolnshire
- b.01 Oct 1207 in Winchester Castle, Hampshire, England d.16 Nov 1272 in Westminster Palace, London, England
- b.1188 in AngoulIme, Charente, France d.31 May 1246 in Fontevrault L'Abbe, Maine-et-Loire, France
- b.17 Jun 1239 in Westminster Palace, London, Middlesex, England d.07 Jul 1307 in Burgh-on-the-Sands, near Carlisle, Cumberland, England
- b.1198 in Of Aix-en-Provence, Bouches-Du-Rhone, France d.19 Aug 1245 in Aix-en-Provence, Bouches-Du-Rhone, France
- b.1222 in Aix-en-Provence, France d.24 Jun 1291 in Amesbury, Wiltshire, England
- b.BET. 1198 - 1201 in of Ghamberg, Savoie, France d.Dec 1266 in France
- b.25 Apr 1284 in Carnarvon Castle, Carnarvon, Wales d.21 Sep 1327 in Berkeley Castle, Gloucestershire, England
- b.15 Aug 1171 in Zamora, LeUn, Spain d.24 Sep 1230 in Villanueva de Soria, Castile
- b.1199 in Castile, Spain d.30 May 1252 in Seville, Spain
- b.Aug 1181 in Segovia, Castile, Spain d.08 Nov 1246 in Las Huelgas, Burgos, Castile, Spain
- b.1240 in of Burgos, Castile, Spain d.29 Nov 1290 in Herdeby (near Grantham), Lincolnshire, England
- b.1180 in of Dammartin, Seine-Et-Marne, France d.21 Sep 1239 in Abbeville, France
- b.1216 in Abbeville, France d.15 MAR 1278/79 in Abbeville, France
- b.17 Apr 1199 in of Aum, le, Seine-Maritime, France d.Sep 1251 in Abbeville, France
- b.13 Nov 1312 in Windsor Castle, Berkshire, England d.21 Jun 1377 in Sheen Palace, Richmond, Surrey
- b.25 Apr 1214 in Chateau of Poissy, Yvelines, France d.25 Aug 1270 in near Tunis, Tunisia, Africa
- b.01 May 1245 in Poissy, Yvelines, France d.05 Oct 1285 in Perpignan, Pyrenees-Orienta, France
- b.1221 in St.-Maime, Forcalquier, France d.20 Dec 1295 in St. Marcel, Paris, Seine, France
- b.1268 in Fontainbleau, Seine-et-Marne, France d.29 Nov 1314 in Fontainbleau, Seine-et-Marne, France
- b.1 FEB 1207/08 in Montpelier, Herault, France d.27 Jul 1276 in Monasterio Ciste, Valencia, AragUn, Spain
- b.BET. 1243 - 1247 in AragUn, Spain or Montpellier, Herault, France d.28 JAN 1270/71 in Cosenza, Calabria, Italy
- b.BET. 1213 - 1219 in Hungary d.12 Oct 1251 in Huesca, Spain
- b.1292 in France d.22 Aug 1358 in Hertford Castle, Hertford, England
- b.03 May 1201 in Navarre, Spain d.08 Jul 1253 in Pamplona, Galicia, Spain
- b.1244 in Troyes, Aube, France d.21 Jul 1274 in Pamplona, Navarre, France
- b.1211 d.13 Apr 1258
- b.JAN 1271/72 in Bar-Sur-Seine, Aube, France d.02 Apr 1305 in Ch, teau de Vincennes Paris, Val-de-Marne, France
- b.Sep 1216 in France d.8 JAN 1249/50 in Al-Mansura, on the Nile, Egypt
- b.~ 1248 in Arras, France d.02 May 1302 in Paris, Seine, France
- b.BET. 1218 - 1224 in Brabant, France d.29 Sep 1288
- b.24 Jun 1348 in Windsor Castle, Berkshire, England d.Sep 1348
- b.1182 d.1244
- b.1218 in Etroeungt, Nord, France d.24 Dec 1257 in Valenciennes, Nord, France
- b.02 Jun 1202 d.10 FEB 1279/80
- b.BET. 1247 - 1251 in Brabant, Holland d.22 Aug 1304 in Valenciennes, Nord, France
- b.24 Jun 1210 in The Netherlands d.19 Jul 1234 in France
- b.1225 in Netherlands d.1284 in Valenciennes, Nord, France
- b.1200 in of St. Hertogenbosch, Noord Brabant, Netherlands d.21 Dec 1267
- b.1280 in Hainault, France d.07 Jun 1337 in Valenciennes, Nord, France
- b.1180
- b.BET. 1217 - 1220 d.24 Dec 1281
- b.Jul 1186 d.17 FEB 1246/47
- b.1252 in Luxemburg, Belgium d.06 Apr 1311 in Valenciennes, Nord, France
- b.1170
- b.1220 d.23 Nov 1275
- b.1174
- b.24 Jun 1311 in Valenciennes, Hainault, Belgium d.14 Aug 1369 in Windsor Castle, Berkshire, England
- b.25 Apr 1214 in Chateau of Poissy, Yvelines, France d.25 Aug 1270 in near Tunis, Tunisia, Africa
- b.01 May 1245 in Poissy, Yvelines, France d.05 Oct 1285 in Perpignan, Pyrenees-Orienta, France
- b.1221 in St.-Maime, Forcalquier, France d.20 Dec 1295 in St. Marcel, Paris, Seine, France
- b.12 MAR 1269/70 in Fontainebleau, France d.16 Dec 1325 in Nogent-le-Roy
- b.1 FEB 1207/08 in Montpelier, Herault, France d.27 Jul 1276 in Monasterio Ciste, Valencia, AragUn, Spain
- b.BET. 1243 - 1247 in AragUn, Spain or Montpellier, Herault, France d.28 JAN 1270/71 in Cosenza, Calabria, Italy
- b.BET. 1213 - 1219 in Hungary d.12 Oct 1251 in Huesca, Spain
- b.BET. 1294 - 1295 in Valois, France d.7 MAR 1341/42 in Fontenelle, Yonne, France
- b.21 MAR 1225/26 in Anjou, France d.7 JAN 1284/85 in Foggia Castle, Foggia, Italy
- b.1254 in of Naples, Italy d.05 May 1309 in Casanuova, Italy
- b.1234 in of Aix-en-Provence, Bouches-Du-Rhone, France d.23 Sep 1267 in Nocera, Calabria, Italy
- b.BET. 1273 - 1274 in Naples, Sicily d.31 Dec 1299
- b.Dec 1239 d.01 Aug 1272
- b.BET. 1257 - 1258 in Budapest, Hungary d.25 Mar 1323
- b.~ 1240 d.1292
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