Mikhail Yaroslavich Khorobrit was a 13th-century nobleman from Vladimir-Suzdal. He was a younger brother of Aleksandr Nevsky and he and his son, Boris Mikhailovich, are sometimes said to have been princes of Moscow before Daniil Aleksandrovich,... Wikipedia
Born: 1229, Pereslavl-Zalessky, Russia
Died: January 15, 1248 (age 19 years), Reka Protva, Russia
Children: Boris Mikhailovich
Parents: Yaroslav II of Vladimir and Theodosia
Siblings: Alexander Nevsky