Sviatoslav the Brave, Igor

(1151 –1201) was a Rus’ prince (a member of the Rurik dynasty). Igor was prince of Putivl (1164–1180), of Novgorod-Seversk (1180–1198), and of Chernihiv (1198–1201/1202).
Chronicle evidence reveals that he had an enviably successful military career; he led many campaigns against the Cumans from among which the chronicles report only one defeat. But it was his defeat at the river Kayala (the exact location of which has never been definitively established) that has become immortalized through its literary rendering in “The Lay of Igor’s Campaign”, the most celebrated epic of Rus’.