Peter de Rivaux, nephew of Peter des Roches, is made Lord Treasurer of Henry III's household and keeper of the king's wardrobe. This moves him into an important position for controlling the king's affairs.
The Almohad army besieges the city of Ceuta, where Abu Musa, rebellious brother of Caliph Idris al-Ma'mun, has received shelter and the support of the population. The Genoese rent a part of their fleet to the rebels, who successfully resist the forces of the caliph. The consequences of this revolt are threefold: the city becomes de facto independent from the Almohads, but its reliance on the Italian maritime powers increases, and the Trans-Saharan trade routes begin to shift eastward, due to the local turmoil.[5]
Mongol Empire
February 9–Battle of Sanfengshan: The Mongol army (some 50,000 warriors) defeats the Chinese Jin forces near Yuzhou. General Subutai successfully wipes out the last field army of the Jin dynasty – therefore sealing its fate of falling to the Mongol Empire. During the encounter, also called the Battle of the Three-Peak Mountain, Emperor Aizong of Jin orders the Jin army (some 150,000 men) to intercept the Mongols. The Jin soldiers are constantly harassed by small groups of Mongol cavalry on the way. When they arrive at Sanfeng Mountain, the Jin army is hungry and exhausted by heavy snowfall. The Jin forces are quickly defeated by the Mongols and flee in all directions.
April 8–Mongol–Jin War: The Mongol army led by Ögedei Khan and his brother Tolui begins the siege of Kaifeng, capital of the Chinese Jin dynasty. During the summer, the Jurchens try to end the siege by negotiating a peace treaty, but the assassination of a Mongol embassy makes further talks impossible. While the negotiations are going on, a plague is devastating the population of the city. In the meantime, supplies stored at Kaifeng are running out, and several residents of the city are executed on the suspicion that they are traitors.[6]
June –Mongol invasion of Korea: Choe Woo, Korean military dictator of Goryeo, orders against the pleas of King Gojong and his senior officials, the royal court, and most of Songdo's population to be moved to Ganghwa Island. Woo starts the construction of strong defenses on Ganghwa Island, which becomes a fortress. The government orders the common people to flee the countryside and take refuge in major cities, mountain citadels, or nearby islands. The Mongols occupy much of northern Korea, but fail to capture Ganghwa Island.
December 16–Battle of Cheoin: Korean forces defeat a Mongol attack at Cheoin (modern-day Yongin). The Mongol Empire concludes a peace treaty with Goryeo and withdraws its forces.
Japan
November 17– Emperor Go-Horikawa abdicates in favor of his 1-year-old son, Shijō, after an 11-year reign. Because he is very young, most of the actual leadership is held by his relatives.
The northern French city of Troyes issues its first recorded life annuities, confirming the trend of consolidation of local public debts initiated in 1218, by the neighboring city of Reims.[7]
Linehan, Peter (1999). "Chapter 21: Castile, Portugal and Navarre". In Abulafia, David (ed.). The New Cambridge Medieval History c.1198–c.1300. Cambridge University Press. pp.668–673. ISBN0-521-36289-X.
Franke, Herbert (1994). The Cambridge History of China: Volume 6, Allien Regimes and Border States, 710–1368, p. 263. Cambridge University Press. ISBN978-0-521-24331-5.
Zuijderduijn, Jaco (2009). Medieval Capital Markets. Markets for renten, state formation and private investment in Holland (1300-1550). Leiden/Boston: Brill. ISBN978-9-00417565-5.
Smith, Thomas W. (2017). "The Use of the Bible in the Arengae of Pope Gregory IX's Crusade Calls". In Lapina, Elizabeth; Morton, Nicholas (eds.). The Uses of the Bible in Crusader Sources. Brill. pp.206–235.