1180: Meaning (information, definition, explanation, facts)

Events

• April 13 - Frederick Barbarossa issues the Gelnhausen Charter
• April 28 - Philip II of France marries Isabella of Hainault
• November 18 - Philip II becomes king of France
• Afonso I of Portugal is taken prisoner by Ferdinand II of Leon
• Alexander Neckam becomes a lecturer in Paris, and writes De Natura Rerum, an early mention of chess (approximate date)
• Artois is annexed by France
• Frederick Barbarossa removes Henry the Lion from the Duchy of Saxony, and created the Duchies of Westphalia and Styria
• The Wittelsbach family takes control of Bavaria
• Menden, Germany, becomes a territory of Cologne
• Petting, Germany, comes under the control of the St. Zeno monastery
• Minnesingers first appear in Germany (approximate date)
• Kilij Arslan II allies with Saladin after the death of Byzantine emperor Manuel I Comnenus
• Alexius II Comnenus becomes Byzantine emperor
• William of Tyre returns to the Kingdom of Jerusalem after attending the Third Council of the Lateran
• Sibylla of Jerusalem marries Guy of Lusignan
• End of the reign of Emperor Takakura of Japan
• Emperor Antoku ascends to the throne of Japan

• Emperor Go-Toba of Japan
• Berenguela of Castile

• William de Braose, Third Lord of Bramber
• Louis VII, King of France
• John of Salisbury, bishop of Chartres
• Manuel I Comnenus, Byzantine emperor

• England - Henry II Curt Mantle, King of England (reigned 1154 - 1189).
• France - Louis VII, King of France (reigned 1137 - 1180).
• France - Philippe II, Auguste King of France (reigned from 1180 to 1223).