_Casimir II PIAST ___________________+ | (1138 - 1194) _Konrad I PIAST _______________| | (1188 - 1247) | | |_Helen of PŘEMYSLID ________________+ | (1141 - 1202) _Casimir I PIAST _____| | (1211 - 1267) | | | _Svyatoslav III Igorevich OLGOVICHI _ | | | (1176 - 1211) | |_Agafia Svyatoslavna of RURIK _| | | | |_Yaroslava Rurikovna RURIK __________+ | | |--Euphemia of PIAST | (1265 - 1307) | _Mieszko IV PIAST ___________________+ | | (1130 - 1211) | _Casimir I PIAST ______________| | | (1179 - 1230) | | | |_ LUDMILA ___________________________ | | |_Euphrosyne of PIAST _| (1228 - 1292) | | _____________________________________ | | |_ VIOLA _______________________| | |_____________________________________