Agafia of Rus' father was Svyatoslav III Igorevich, a Rus' prince (a member of the Rurik dynasty).
Agafia was the daughter of Svyatoslav III Igorevich and his wife Yaroslava Rurikovna, a daughter of prince Rurik Rostislavich of Belgorod. Svyatoslav III Igorevich (1176  September 1211) was a Rus' prince (a member of the Rurik dynasty). 
