Kinship between St. Ferdinand III, King of Castile & León and Jeanne de Dammartin Countess de Ponthieu through Theobald I, Count of Blois
Numbersame asNameAncestor Evidence
Generation 1
[  1.02*   3]           St. Ferdinand III, King of Castile & León (~1201-1252)
[  2.01*   4]           Jeanne de Dammartin Countess de Ponthieu (~1220-1279)
Generation 2
[  3.01*   6]           Berengaria, Queen of Castile (~1180-1246)
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[  4.01    8]           Marie de Ponthieu (>1195-1250)
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Generation 3
[  6.01*  12]           Eleanor of England (1162-1214)
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[  4.02*  14]           William Talvas William II, Count of Ponthieu (>1178-1221)
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[  8.01*  15]           Alix de France, Countess of Eu (1160-)
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Generation 4
[ 12.01     ]           Eleonore d’Aquitaine (1122-1204)
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[ 14.01*  27]           Béatrix de Saint-Pol (e1162-)
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[ 15.01     ]           Alix de Champagne (~1140-1206)
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Generation 5
[ 12.02     ]           William X, Duke of Aquitaine (1099-1137)
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[ 27.01     ]           Eustache de Champagne (e1146-~1164)
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[ 15.02     ]           Theobald IV, Count of Blois and Champagne (~1090-1152)
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Generation 6
[ 12.03     ]           William IX, Duke of Aquitaine (1071-1127)
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[ 27.02     ]           Eustace IV, Count of Boulogne (~1120-1153)
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[ 15.03     ]           Stephen, Count of Blois (e1049-1102)
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Generation 7
[ 12.04     ]           William VIII, Duke of Aquitaine (1023-1086)
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[ 27.03     ]           Stephen, King of England (1096-1154)
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[ 15.04     ]           Thibaut III, Count of Blois (~1010-1089)
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Generation 8
[ 12.05* 190]           Guillaume V, Duke of Aquitaine (~969-1030)
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[ 27.04     ]  [6:15.03]Stephen, Count of Blois (e1049-1102)
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[ 15.05     ]           Eudes de Blois II, Count of Blois (983-1037)
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Generation 9
[190.01     ]           Emma de Blois (~953-)
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[ 15.06     ]           Eudes I, Count of Blois (e946-996)
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Generation 10
[190.02*    ]           Theobald I, Count of Blois (~910-~977)
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[ 15.07*    ][10:190.02]Theobald I, Count of Blois (~910-~977)
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