Oleg of Drelinia

Oleg Svyatoslavich
Prince of the Drevlyans
Reign	969–977
Died	977 Ovruch
Burial	Church of the Tithes, Kiev
House	Rurik Dynasty
Father	Sviatoslav the Brave
Mother	Predslava

Oleg was a Rurikid ruler of the Drevlyans from 969 to his death in 977. He was the second son of Sviatoslav I of Kiev.

Date of birth is not known, but is probably before 957. Sviatoslav split up his domains, and gave the Drevlyan lands to Oleg. Oleg and his brother Yaropolk went to war after their father's death. According to Primary chronicle, Oleg killed Lyut, the son of Yaropolk's chief adviser and military commander Sveneld, when he hunted in the Drevlyan lands which Oleg regarded as his own. In an act of revenge and at the insistence of Sveneld, Yaropolk went to war against his brother Oleg and killed him in Ovruch. Oleg was killed incidentally on the run in moat, and Yaropolk did regret this. 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'.

In 1044 Yaroslav I the Wise had Oleg's bones exhumed, christened, and reburied in the Church of the Tithes.

There is a Czech legend (mentioned by Jan Amos Komenský (in Spis o rodu Žerotínů), Bartosz Paprocki and Bohuslav Balbín, among others), that the noble House of Zierotin descends from a certain Oleg of Rus (see for details).

...
Wikipedia