Year 1214 (MCCXIV) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar.
November 1 – Siege of Sinope: The Black Sea port city of Sinope surrenders to the Seljuq Turks.
The Emperor Xuanzong of Jin China surrenders to the Mongols under Genghis Khan, who have besieged Beijing for a year. He pays a huge ransom and then abandons northern China, heading for Kaifeng.
In his campaigns in Liaodong, the Mongol general Mukhali commands a newly formed Khitan–Chinese army and a special corps of 12,000 Chinese auxiliary troops.
February 15 – John, King of England, lands an invasion force at La Rochelle in France.
July 27 – Battle of Bouvines: Philip II of France defeats an army of Imperial German, English and Flemish soldiers led by Otto IV, Holy Roman Emperor, in the Kingdom of France, ending the Anglo-French War (1202–14).
Summer – King Alfonso VIII of Castile besieges Almohad troops in Baeza. The famine experienced in the peninsula is such that neither army is able to fight.
September 18 – Treaty of Chinon signed by John, King of England, and Philip II of France recognising the Capetian gains from the Angevin Empire.
October 5 – Upon the death of their father, King Alfonso VIII of Castile, and of their mother, Eleanor (October 31), Berenguela becomes the regent of her young brother, King Henry I.
December 4 – Death of William the Lion, King of the Scots, having reigned since 1165; he is succeeded by his son, Alexander II (crowned at Scone on December 6) who will reign until his death in 1249.
The German city of Bielefeld is founded.
June 20 – Papal ordinance defines the rights of the scholars at the University of Oxford.
April 13 (approx.) – Simon of Apulia elected Bishop of Exeter in England.
According to Catholic Church tradition, the rosary is given to Saint Dominic by Mary (mother of Jesus).
April 25 – King Louis IX of France (d. 1270)
Isabella of England, daughter of John of England (d. 1241)
Approximate date – Roger Bacon, English philosopher and scientist (died c.1292)
September 14 – Albert Avogadro, Latin Patriarch of Jerusalem (b. 1149)
October 5 – King Alfonso VIII of Castile (b. 1155)
October 31 – Eleanor of England, Queen of Castile (b. 1162)
December 4 – William the Lion, King of the Scots (b. c. 1143)
October 18 – John de Gray, bishop of Norwich
date unknown
Rurik Rostislavich, Prince of Novgorod
Steksys, Grand Prince of Lithuania
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