Events

• Concordat of Worms condemns Pierre Abélard's writings on the Holy Trinity. Later in the year, Fulbert of Chartres, uncle of Heloise, has Abélard castrated.
• Reading Abbey is founded.
• David the Builder, King of Georgia, with the army of 55,000 defeats the 200,000-strong Muslim coalition troops at Didgori, Eastern Georgia.

Births

• Eleanor d'Aquitaine, Queen of France and England (d. 1204)

Deaths

• William of Champeaux, French philosopher and Abélard's teacher.