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 11 - Batu Khan defeats Béla IV of Hungary at the Battle of Mohi.
• April 27 - Mongols defeat Bela IV of Hungary in the battle of Sajo.
• Snorri Sturluson, Icelandic saga writer, is murdered by Gissur Þorvaldsson, an emissary of the King of Norway.

Births

• September 4 - King Alexander III of Scotland (died 1286)
• Eleanor of Castile, queen of Edward I of England (died 1290)

Deaths

• April 9 - King Henry II of Poland
• August 22 - Pope Gregory IX
• September 23 - Snorri Sturluson, Icelandic historian, poet and politician (born 1178)
• September 26 - Fujiwara no Teika, Japanese poet
• October 25 - Pope Celestine IV
• December 1 - Isabella of England, wife of Frederick II, Holy Roman Emperor (born 1214)
• Eleanor, Fair Maid of Brittany
• Ivan Asen II of Bulgaria
• Valdemar II of Denmark (born 1170)
• Ögedei Khan

1241

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