_Valdemar I Knudsen ESTRIDSEN _+ | (1130 - 1182) _Valdemar II ESTRIDSEN _| | (1170 - 1241) | | |_Sofia of POLOVTS _____________+ | (1138 - 1198) _Christopher I Valdemarsen ESTRIDSEN _| | (1219 - 1259) | | | _Sancho I BURGUNDY ____________+ | | | (1154 - 1211) | |_Berengaria BURGUNDY ___| | (1198 - 1221) | | |_Dulce of BARCELONA ___________+ | (1160 - 1198) | |--Valdemar ESTRIDSEN | | _______________________________ | | | ________________________| | | | | | |_______________________________ | | |_Margaret of SOBIESLAW _______________| (1230 - 1282) | | _______________________________ | | |________________________| | |_______________________________