Igor Svyatoslavich, nicknamed the Brave, was Prince of Novgorod-Seversk and Prince of Chernigov. Wikipedia
Born: April 2, 1151, Novhorod-Sivers'kyi, Ukraine
Died: 1202 (age 51 years), Novhorod-Sivers'kyi, Ukraine
Grandchildren: Agafia of Rus and Maria Olegovna
Children: Vladimir III Igorevich, Svyatoslav III Igorevich, Roman II Igorevich, and more
Parents: Sviatoslav Olgovich and Kateryna Petrylivna
Grandparents: Oleg I of Chernigov, Theophania Muzalon, and Oseluk
Great grandchildren: Casimir I of Kuyavia, Siemowit I of Masovia, Judith of Masovia, and more