Events

• Diet of Roncaglia convoked by Frederick Barbarossa
• January 11 - Vladislav II becomes King of Bohemia
• End of the formal reign of Emperor Go-Shirakawa, emperor of Japan, also the beginning of his cloistered rule, which will last to his death in 1192.
• November 29 - Eleanor of Aquitaine arrives in Salisbury, Wiltshire on royal business.
• Emperor Nijō ascends to the throne of Japan.
• British Pound Sterling (currency) introduced
• Margrave Ottokar III of Styria inherited the County of Pitten

Births

• September 23 - Geoffrey II, Duke of Brittany (died 1186)
• Marguerite of France, daughter of Louis VII of France (died 1197)
• Taira no Shigehira, son of Taira no Kiyomori (died 1185)

Deaths

• August 30 - King Sancho III of Castile (born 1134)
• Otto of Freising, German bishop and chronicler (born c. 1114)

Heads of states

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

1158

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