1177

Events

* March - Treaty of Venice: Frederick I Barbarossa acknowledges Alexander III as Pope.
* August 1 − 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.
* During the third year of the Angen era in Japan, a fire devastates Kyoto.
* Benedictus Abbas becomes abbot of Peterborough.
* Byland Abbey is founded in Yorkshire by the Cistercians.
* Casimir II becomes duke of Poland.
* The Cham sack the Khmer capital of Angkor Wat.
* Roger de Moulins becomes Grand Master of the Knights Hospitaller.
* Moscow is burned down and its inhabitants are killed.
* Puigcerdà is founded by Alfonso II of Aragon.
* Leopold V becomes Duke of Austria.
* The Estonians attack Pskov during the winter.

Births

* Baldwin V, King of Jerusalem (d. 1186)
* Robert de Ros, English baron (d. 1226)
* Philip of Swabia, rival of Otto IV, Holy Roman Emperor (d. 1208)

Deaths

* January 13 — Henry II of Austria (b. 1107)
* William of Montferrat, Count of Jaffa and Ascalon, father of Baldwin V of Jerusalem (b. early 1140s)
* Hugh Bigod, 1st Earl of Norfolk (b. 1095)

Heads of State

*England — Henry II (reigned 1154–1189)
*France — Louis VII (reigned 1137–1180)
*Byzantine Empire — Manuel I Comnenus (reigned 1143–1180)
*Alexander III (pope 1159–1181)
*Song China - Song Xiaozong (宋孝宗) (reigned 1162–1189)