Sviatoslav II of Kiev, born in one thousand twenty-seven, was a significant figure in the history of Kievan Rus'. As the younger son of Yaroslav the Wise, he became the Grand Prince of Kiev in one thousand seventy-three, a position he held until his death in one thousand seventy-six. His lineage is notable as he is the progenitor of the Sviatoslavichi branch of the Rurikids.
During his father's reign, Sviatoslav governed the Principality of Vladimir in Volhynia from around one thousand forty to one thousand fifty-four. Following the testament of Yaroslav the Wise, he was granted the Principality of Chernigov. Sviatoslav played a crucial role in the political landscape of Kievan Rus', forming a princely