Oleg III Svyatoslavich

Oleg III Svyatoslavich (c. 1147–1204) was a Kievan Rus' prince. His baptismal name was Feodosy. He was prince of Vshchizh (1166–before 1175), of Novgorod-Seversk (1200–1201), and of Chernigov (1201/1202–1204). His life He was the second son of Grand Prince Svyatoslav Vsevolodovich of Kiev and Maria Vasilkovna of Polotsk. Under the year 1166, the chronicler reports that the daughter of Prince Andrey Yuryevich of Suzdalia, who had married Oleg, died. Circumstantial evidence shows that the Oleg in question was the son of Svyatoslav Vsevolodovich. On an undisclosed date, Oleg remarried a Ryazan princess; his father-in-law Yury Rostislavich was the younger brother of Prince Gleb Rostislavich of Ryazan. In the spring of 1166, Prince Svyatoslav Vladimirovich of Vshchizh died, and his domain passed to the closest living relatives, the Olgovichi (the ruling dynasty of Chernigov). Oleg’s father, as the senior prince of the Olgovichi, held the authority to allocate the dead prince’s domains, and he gave Vshchizh to one of his sons; one view is, probably correctly, that the son was Oleg.