Sviatoslav, Grand Prince (kievan rus) : All Data
Sviatoslav was a Grand Prince who ruled over Kievan Rus' from 968 to 972. During his tenure, he engaged in several significant wars, including the war against the Khazars in 968 and the war against the Volga Bulgars in 969. These conflicts were consistent with the calculated timespan of Sviatoslav's rule and showcased his military prowess and ambition to expand his realm.