15th August » The Battle of the Puig takes place in the context of the Spanish Reconquista pitting the forces of the Taifa of Valencia against the Kingdom of Aragon. The battle resulted in an Aragonese victory.
25th September » Kingdom of England England and Kingdom of Scotland Scotland sign the Treaty of York, establishing the location of their Anglo-Scottish border common border.
21st December » The city of Ryazan is sacked by the Mongols called Mongol army of Batu Khan.
Famous Deaths in History for 1237
21st May » Olaf the Black, Manx son of Godred II Olafsson