|1143 by topic|
|Birth and death categories|
|Births – Deaths|
|Establishments and disestablishments categories|
|Establishments – Disestablishments|
|Art and literature|
|1143 in poetry|
|Wikimedia Commons has media related to 1143.|
- Jijel is taken by the Normans.
- A Norman raid on Ceuta fails, but at the same time the Normans lead a successful assault against Sfax.
- April 5 – Manuel I Comnenus becomes Byzantine Emperor.
- July 1 – Battle of Wilton: Robert, 1st Earl of Gloucester defeats Stephen I of England at Wilton.
- September 26 – Pope Celestine II succeeds Pope Innocent II, as the 165th pope.
- October 5 – Treaty of Zamora: Portugal is recognized by the Kingdom of León as an independent kingdom, although it had already functioned as one since the Battle of São Mamede in 1128.
- Robert of Ketton makes the first European translation of the Qur'an into Latin.
- The exploration of the uncharted eastern parts of Germany begins, and results in the founding of cities such as Lübeck.
- During the summer the people of Rome revolt against the authority of the Pope, and create a republican city-state comparable to that of the other Italian cities.
- January – Patriarch Leo of Constantinople
- February – Hugh II, Duke of Burgundy (b. 1084)
- April 8 – John II Comnenus, Byzantine Emperor (b. 1087)
- April 18 – Gertrude of Süpplingenburg, regent of Saxony (b. 1115)
- September 24
- November 13 – Fulk, King of Jerusalem, Count of Anjou (b. c. 1089/1092)
- December 12 – Kogyo-Daishi, restorer of Shingon Buddhism in Japan (b. 1095)
- date unknown
- Gilbert Meynier (2010) L'Algérie cœur du Maghreb classique. De l'ouverture islamo-arabe au repli (658-1518). Paris: La Découverte; pp.71.
- Picard C. (1997) La mer et les musulmans d'Occident au Moyen Age. Paris: Presses Universitaires de France.
- Bresc, Henri (2003). "La Sicile et l'espace libyen au Moyen Age" (PDF). Retrieved 17 January 2012.