Ingvar Igorevich

Ingvar Igorevich, in baptism Kosma (died 1235), was prince of Ryazan from 1217. In 1207 he was among the Ryazan princes accused of treason and carried off to prison by Vsevolod the Big Nest of Vladimir, and he was released only in 1212. He escaped the congress at Isady in 1217, where his cousin Gleb Vladimirovich massacred his rivals and Ingvar's brothers died.

In 1219 he defeated Gleb and his Polovtsian allies, then with help from Grand Prince Yuri of Vladimir defeated them again. In 1220 he founded the Olgov Monastery.