. "first Russian city to face Mongolian invasion" . "destruction of Ryazan" . . "Ryazan devastated" . "Mongol victory; Ryazan burned to the ground" . . . "Siege of Ryazan" . "sacked" . . . . . "besieged Ryazan" . . . . "Unknown; not very heavy" . "the siege of Ryazan" . . . . "Siege of Ryazan" . . "Principality of Ryazan" . "Kievan Rus'" . . . . . . . "Unknown; probably large" . "Siege of Ryazan (1237)" . . . . "Mongol Empire" . "Unknown" . "destroyed" . .