Events

• April 5 - Mongols of Golden Horde under the command of Subotai defeat feudal Polish nobility, including Knights Templar, in the battle of Liegnitz
• April 27 - Mongols defeat Bela IV of Hungary in the battle of Sajo .

Births

• September 3 - King Alexander III of Scotland (d. 1286)
• Eleanor of Castile, queen of Edward I of England (d. 1290)

Deaths

• April 9 - Henry the Pious, Duke of Silesia
• August 22 - Pope Gregory IX
• September 23 - Snorri Sturluson, Icelandic historian, poet and politician
• November 10 - Pope Celestine IV

Monarchs/presidents

• Aragon - James I King of Aragon and count of Barcelona (reigned from 1213 to 1276)
• Castile - Ferdinand III, the Saint King of Castile and Leon (reigned from 1217 to 1252)