1109

Events

* Battle of Naklo: The Poles, led by Boleslaus III, defeat the Pomeranians.
* Battle of Hundsfeld: The Poles defeat the Holy Roman Empire.
* August 14 - Battle of Głogów: The Poles again defeat the Holy Roman Empire.
* Fulk V becomes Count of Anjou.
* Alfonso I of Aragon marries Urraca of Castile.
* The Crusaders capture Tripoli and Beirut.
* Anselm of Laon becomes chancellor of Laon.
* The Principality of Nitra ceases to exist, after the Hungarian king Coloman deposes its last ruler.

Births

* July 25 — King Afonso I of Portugal (d. 1185; birthdate disputed)

Deaths

* April 21 — Anselm of Canterbury, Archbishop of Canterbury
* April 28 — Abbot Hugh of Cluny (b. 1024)
* July 1 — King Alfonso VI of Castile (b. 1040)
* William-Jordan, Count of Cerdagne and Tripoli