Ruppenthal Genealogy . . .

Sviatoslav Mikhail Olegovich (Rurikid), prince of Chernigov
abt 1098 - February 15, 1164

Maria Petrilovria
abt 1120 - April 1166
Married: ?? - ??

Maria Sviatoslavna, princess of Chernigov
abt 1137 - ??

Oleg Sviatoslavich, prince of Novhorod-Siverskyi
abt 1137 - January 18, 1180

Igor 'the Brave' Svyatoslavich, prince of Chernigov
April 10, 1151 - 1202

Vsevolod Sviatoslavich, prince of Kursk
abt 1153 - May 1196, Chemihiv, Chernihivs Oblast-Klievan Rus