Charles Cawley suggests that prince Oleg Svyatoslavich of Novgorod-Seversk was also Svyatoslav’s son ([1], retrieved on 2009-04-13). Oleg Svyatoslavich, however, escaped from the Kayala massacre in 1185; therefore he was probably the son of prince Svyatoslav Olgovich of Rylsk; Dimnik, Martin op. cit. p. 303.
raex.com
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Obsidian (2009-02-17). "Regnal Chronologies". Ukraine - Chernigov. Foundation of Medieval Genealogy. Diarsipkan dari versi asli tanggal 2009-03-07. Diakses tanggal 2009-04-13.
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Obsidian (2009-02-17). "Regnal Chronologies". Ukraine - Chernigov. Foundation of Medieval Genealogy. Diarsipkan dari versi asli tanggal 2009-03-07. Diakses tanggal 2009-04-13.