| | Jean II de Dreux 1239–1305 Beatrice Plantagenet 1242–1274 | | | | Jean I de Dreux 1217–1305 Blanche … of Navarre 1214–1283 | | | | Pierre I de Dreux 1190–1250 Alix de Thouars 1201–1221 | | | | Constance … of Brittany 1162–1201 | | |
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| | | Theobald IV … of Navarre …–… |
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| | | Henry III Plantagenet 1206–1272 Eleanor … of Provence 1217–1291 | | | | Isabella de Taillefer 1180–1245 Isabelle de Clare 1170–1217 | | | | Henry II Plantagenet 1133–1189 | | |
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| | | Beatrice de Savoy 1201–1266 |
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