Constance Duchess of Brittany
Abt 1161 - 1201 (~ 40 years)
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| Eleanor of Anjou 1184-1241 |
| Eleanor of Anjou | |
| B: | 1184 |
| D: | 10 Aug 1241 |
| Matilda Anjou Abt 1185-Yes, date unknown |
| Matilda Anjou | |
| B: | Abt 1185 |
| D: | Yes, date unknown |
 | Arthur (Duke of Brittany) Plantagenet 1187-1203 |
| Arthur (Duke of Brittany) Plantagenet | |
| B: | 29 Mar 1187 |
| Nantes, Brittany | |
| D: | 3 Apr 1203 |
| Killed By His Uncle King John | |
| Daughter of Tancred King of Sicily -Yes, date unknown |
| Daughter of Tancred King of Sicily | |
| M: | Oct 1190 |
| D: | Yes, date unknown |
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| Constance Duchess of Brittany Abt 1161-1201 |
| Constance Duchess of Brittany | |
| B: | Abt 1161 |
| D: | 5 Sep 1201 |
| Nantes, Brittany | |
| Geoffrey II Duke of Brittany 1158-1186 |
| Geoffrey II Duke of Brittany | |
| B: | 23 Sep 1158 |
| M: | Jul 1181 |
| D: | 19 Aug 1186 |
| Paris | |
| Ranulph (4th Earl of Chester) De Blundeville Aft 1172-1232 |
| Ranulph (4th Earl of Chester) De Blundeville | |
| B: | Aft 1172 |
| M: | 3 Feb 1186-1187 |
| D: | 1232 |
| John II (Earl of Richmond) De Dreux 1239-1305 |
| John II (Earl of Richmond) De Dreux | |
| B: | 1239 |
| D: | 1305 |
| Beatrice Plantagenet 1242-1275 |
| Beatrice Plantagenet | |
| B: | 25 Jun 1242 |
| M: | 22 Jan 1259-1260 |
| Abbey Of St Denis, Paris | |
| D: | 24 Mar 1274-1275 |
| John The Red (Duc Le Roux) Duke of Brittany | |
| D: | 1286 |
| Blanche of Navarre 1226-1283 |
| Blanche of Navarre | |
| B: | 1226 |
| D: | 11 Aug 1283 |
| Alice De Lusignan -Yes, date unknown |
| Alice De Lusignan | |
| D: | Yes, date unknown |
| Gilbert The Red (3rd Earl Ofgloucester) De Clare | |
| B: | 2 Sep 1243 |
| M: | 1253 |
| D: | 7 Dec 1295 |
| Mary (of La Marche & Angouleme) De Lusignan Abt 1242-Aft 1266 |
| Mary (of La Marche & Angouleme) De Lusignan | |
| B: | Abt 1242 |
| D: | Aft 11 Jul 1266 |
| Robert (6th Earl of Derby) De Ferrers | |
| M: | 1249 |
| D: | 1279 |
| Yolande (De Bretagne) De Dreux 1218-1272 |
| Yolande (De Bretagne) De Dreux | |
| B: | 1218 |
| D: | 1272 |
| Hugh XI (Count of Mar & Angoul?me) De Lusignan | |
| M: | 1235 |
| D: | 1250 |
| Alice (Duchess of Brittany) De Thouars 1201-1221 |
| Alice (Duchess of Brittany) De Thouars | |
| B: | 1201 |
| D: | 1221 |
| Pierre I Mauclerc of Brittany Count De Dreux Abt 1189-1250 |
| Pierre I Mauclerc of Brittany Count De Dreux | |
| B: | Abt 1189 |
| M: | 1213 |
| D: | 22 Jun 1250 |
| Katherine De Thouars 1201-Yes, date unknown |
| Katherine De Thouars | |
| B: | 1201 |
| D: | Yes, date unknown |
| Andrew (of Brittany) De Vitre -Yes, date unknown |
| Andrew (of Brittany) De Vitre | |
| D: | Yes, date unknown |
| Guy Viscount De Thouars -1213 |
| Guy Viscount De Thouars | |
| M: | 1199 |
| Angers, Anjou | |
| D: | 1213 |