Oleg I of Ryazan, nicknamed the Red, ruled the Principality of Ryazan in 1252–1258
Ryazan | Oleg Kalugin | Oleg Gazmanov | Oleg Mityaev | Oleg Kagan | Oleg Deripaska | Oleg Menshikov | Oleg Maisenberg | Oleg Kulik | Oleg Caetani | Ryazan Oblast | Oleg Yefremov | Oleg Strizhenov | Oleg Grabar | Oleg Goncharenko | Oleg Firsov | Ryazan Governorate | Principality of Ryazan | Oleg Vyugin | Oleg Timchenko | Oleg Tabakov | Oleg Pungin | Oleg Popov | Oleg Ostapenko | Oleg Maslennikov | Oleg Malov | Oleg Litvinenko | Oleg Khlevniuk | Oleg Kashin | Oleg I of Ryazan |