1113

By place

Byzantine Empire

• Spring - Siege of Nicaea: Malik Shah, Seljuk ruler of the Sultanate of Rum, sends an expedition through Bithynia to the very walls of Nicaea. Seljuk forces raid Abydos on the Hellespont, with its rich custom-houses. Malik Shah attacks and captures Pergamum. Emperor Alexios I sets out to meet the Seljuk invaders. He lifts the siege at Nicaea and wins a complete victory near Cotyaeum.

  Levant

• Summer - King Baldwin I of Jerusalem marries Adelaide del Vasto, the wealthy widow of Count Roger I. She lands at Palestine – accompanied by Arab soldiers and travels to Jerusalem. Their marriage is bigamous, because Baldwin is legally still married with his second wife Arda of Armenia.
• June 28 - Battle of Al-Sannabra: The Crusaders led by Baldwin I are defeated by a Seljuk army under Mawdud ibn Altuntash, the Turkic governor of Mosul, at the Jordan River south of the Sea of Galilee. Mawdud sends raiding collums to ravage the countryside and sacks the town of Nablus.
• The Order of Knights of the Hospital of Saint John, founded to protect pilgrims to the Holy Land, is formally recognized by the papal bull called Pie Postulatio Voluntatis.

  Europe

• April 16 - Sviatopolk II, Grand Prince of Kiev, dies after a 20-year reign and is succeeded by his 60-year-old cousin Vladimir II. He begins a campaign against the Cumans on the steppe in an effort to reunite the land of Kievan Rus'.
• September 7 - The Republic of Pisa signs a treaty with Ramon Berenguer III, count of Barcelona. The Pisan fleet embarks on a campaign against the Moors in the Balearic Islands.
• The Republic of Florence conquers the neighboring city of Montecascioli, as part of its effort to extend its domination over the contado.
• Peter Abelard, a French scholastic philosopher, opens his school in Paris, on the heights of Montagne Sainte-Geneviève.
• Queen Urraca of Castile unsuccessfully attempts to seize the city of Burgos from her ex-husband, King Alfonso I.

  Asia

• A Thousand Li of Rivers and Mountains, the only extant work by the Chinese painter Wang Ximeng, is finished.
• King Suryavarman II begins his reign as ruler of the Khmer Empire.

  By topic

Religion

• Bridlington Priory is founded in England, in the Diocese of York.