1128

By place

Byzantine Empire

• Byzantine–Hungarian War: Emperor John II defeats the Hungarians and their Serbian allies at the fortress of Haram, which is modern-day Nova Palanka. Many Hungarian troops are killed when a bridge they are crossing collapsed as they are fleeing for the Byzantines. John launches punitive raids against the Serbs and many are taken prisoner – as they are transported to Nicomedia to serve as military colonists.

  Europe

• June 24 - Battle of São Mamede: Count Alfonso I defeats the forces led by his mother, Queen Theresa of Portugal, near Guimarães, and gains control of the county. Alfonso styles himself "Prince of Portugal".
• June 29 - Conrad III, anti-king of Germany, is crowned "King of Italy" by Archbishop Anselmo della Pusterla at Monza in Lombardy.
• July 27 - The city of Bruges is founded. It receives its city charter – as well new walls and canals are build.
• Pope Honorius II invests Roger II of Sicily as duke of Apulia at Benevento, after his failure to form an coalition against Roger.
• King Louis VI of France agrees to the accession of Thierry of Alsace, as count of Flanders.

  England

• June 17 - King Henry I marries his only legitimate daughter, dowager Empress Matilda, to the 14-year-old Geoffrey V, count of Anjou.

  Levant

• Hugues de Payens, French Grand Master of the Order of the Knights Templar, visits both England and Scotland, where he raises men and money for the Order.

  Asia

• Jin–Song War: Emperor Gao Zong of the Song Dynasty establishes a new capital at Yangzhou, while the government retreats south, after Jurchen forces capture the previous capital of Kaifeng, in the Jingkang Incident.
• Forces of the Kingdom of Champa invade Vietnam.

  By topic

Religion

• November 24 - Waverley Abbey is founded by Bishop William Giffard. The first abbot and 12 Cistercian monks are brought from L'Aumône Abbey in Normandy.
• Honorius II recognizes and confirms the Order of the Knights Templar. The French abbot Bernard of Clairvaux codifies the rule of the Order.
• Holyrood Abbey is founded in Edinburgh by King David I of Scotland.
• Kelso Abbey is founded by Scottish monks of the Tironensian Order.