Events

• Rebellion against king Sancho II of Portugal in favor of his brother Alphonso.
• The rebuilding of Westminster Abbey is started.
• Pope Innocent IV sends two missions to the Mongol Khan, suggesting that the Mongols convert to Christianity.

Births

• January 16 - Edmund Crouchback, 1st Earl of Lancaster (d. 1296)
• April 3 - King Philip III of France (d. 1285)
• Boniface of Savoy, count of Savoy (or 1244)

Deaths

• Alexander of Hales, theologian

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)