1261

Events

 * January - Pope bans the movement of.
 * - The city of is recaptured by  forces under the command of Alexios Strategopoulos, thus re-establishing the .  The Byzantines also succeed in capturing  and the rest of the.
 * - is crowned  in Constantinople.
 * - succeeds  as the 182nd .  He was the last man to do so without being a  first.
 * The population of accepts the overlordship of the.
 * The Japanese era ends, and the  era begins.
 * The is established in.
 * establishes a puppet in.
 * of repels a  invasion.
 * The, , releases seventy-five  Chinese merchants from captivity after they had been captured along the border of the Mongol Empire and the  Southern Song Dynasty. This was an act to increase his reputation amongst the , shore up his legitimacy as a just ruler, and to gain more defectors from the Southern Song Dynasty.

Births

 * -, English bishop (died )
 * - King (died )
 * , son of

Deaths

 * -, Archbishop of Cologne
 * , regent
 * , Chinese mathematician of the (born )
 * , regent
 * , Chinese mathematician of the (born )