Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Yaropolk I Svyatoslavich (c 958-960 - 11 June? 980) was a young and rather enigmatic ruler of Kiev between 972 and 980. His royal title is traditionally translated as "Prince".Yaropolk was given Kiev by his father Svyatoslav I, who left on a military campaign against the Danube Bulgars. Soon after Svyatoslav''s death, however, civil war began between Yaropolk and his brothers. According to one chronicle, Yaropolk''s brother Oleg killed Lyut, the son of Yaropolk''s chief adviser and military commander Sveneld. In an act of revenge and at the insistence of Sveneld, Yaropolk went to war against his brother and killed him. Then, Yaropolk sent his men to Novgorod, from which his other brother Vladimir had fled on receiving the news about Oleg''s death. Yaropolk became the sole ruler of Rus''.