1177
Year 1177 was a common year starting on Saturday of the Julian calendar.Events
January–December
- January - Eystein Meyla, leader of the Birkebeiner in Norway, is killed. Sverre Sigurdson becomes the new leader.
- January 13 - Leopold V becomes Duke of Austria.
- March - Treaty of Venice: Frederick I Barbarossa acknowledges Alexander III as Pope, after a diplomatic mediation by Venetian doge Sebastiano Ziani.
- March 16 - The Spanish Award is signed and witnessed by, among others, Robert de Stuteville III and John of Greenford
- August 1 - The Holy Roman Empire renounces any claims on the territory of Rome.
- September 27 - Pope Alexander III sends a letter to Prester John, believing he is real.
- November 25 - Battle of Montgisard: Baldwin IV of Jerusalem and Raynald of Chatillon defeat Saladin.
Date unknown
- During the third year of the Angen era in Japan, a fire devastates Kyoto.
- During the winter, the Estonians attack Pskov.
- Casimir II overthrows his brother Mieszko III the Old, to become High Duke of Poland.
- The Cham sack the Khmer capital of Angkor Wat. The date is disputed.
- Moscow is burned down by Gleb I, prince of Ryazan, and its inhabitants are killed.
- A civil war breaks out in the Republic of Florence, between the Uberti Family and their consular opponent.
- Puigcerdà is founded by Alfonso II of Aragon.
- Byland Abbey is established on its final site in Yorkshire, England, by the Cistercians.
- Abbas Benedictus becomes abbot of Peterborough in England.
- Roger de Moulins becomes Grand Master of the Knights Hospitaller.
- possible date - Richard FitzNeal begins to write his treatise Dialogus de Scaccario in England.
Births
February/March - Philip of Swabia, rival of Otto IV, Holy Roman Emperor August - Baldwin V, King of Jerusalem Marie of Oignies, French beguin Sylvester Gozzolini, Italian founder of the SylvestrinesDeaths
January 13 - Henry II, Duke of Austria January - Eystein Meyla, leader of the Birkebeiner in Norway. June - William of Montferrat, Count of Jaffa and Ascalon, father of Baldwin V of Jerusalem probable - Hugh Bigod, 1st Earl of Norfolk
