1213

• John of England submits to Pope Innocent III, who in turn lifts the interdict of 1208 the following year.^[1][2]
• May 30 – Battle of Damme: The English fleet under William Longespée, 3rd Earl of Salisbury, destroys a French fleet off the Belgian port in the first major victory for the fledgling Royal Navy.^[3][4]
• Raymond VI of Toulouse and Peter II of Aragon are defeated by the Albigensian Crusade, under Simon de Montfort.^[5][6]
• Jin China is overrun by the Mongols under Genghis Khan, who plunder the countryside and cities, until only Beijing remains free, despite two bloody palace coups and a lengthy siege.^[7][8]
• Pope Innocent III issues a charter, calling for the Fifth Crusade to recapture Jerusalem.^[9][10][11]

• Construction of the Kilkenny Castle in Ireland is completed.^[12][13]

Births

• March 9 – Hugh IV, Duke of Burgundy, French crusader (d. 1271)^[14]
• Fakhr-al-Din Iraqi, Persian philosopher and Sufi mystic^[15][16]
• Ibn al-Nafis, polymath (d. 1288)^[17]
• Hethum I, King of Armenia, ruler of the Armenian Kingdom of Cilicia (d. 1270
  )

• January 18 – Queen Tamar of Georgia (b. c. 1160)^[18][19]
• April 13 – Guy of Thouars, regent of Brittany^[20][21][22]
• April 21 – Maria of Montpellier, Lady of Montpellier, Queen of Aragon (b. 1182)^[23][24]
• September 12 – King Peter II of Aragon (killed in battle) (b. 1174)^[25][26]
• September 28 – Gertrude of Merania, queen consort regent of Hungary (murdered) (b. 1185)^[27][28][29]
• October 10 – Frederick II, Duke of Lorraine^[30]
• October 14 – Geoffrey Fitz Peter, 1st Earl of Essex^[31][32]
• Sharafeddin Tusi, Persian mathematician (b. 1135)^[33][34][35]