1158

Births 
 August 6 – Al-Nasir li-Din Allah, Abbasid caliph (d. 1225)
 September 23 – Geoffrey II, duke of Brittany (d. 1186)
 Albert I (the Proud), margrave of Meissen (d. 1195)
 Baldwin of Bethune, French nobleman (d. 1212)
 Ermengol VIII (or Armengol), count of Urgell (d. 1208)
 Fujiwara no Ietaka, Japanese (waka) poet (d. 1237)
 Giordano Forzatè, Italian religious leader (d. 1248)
 Henry I, French nobleman and knight (d. 1190)
 Henry I (the Elder), German nobleman (d. 1223)
 Jinul (or Chinul), Korean Zen Master (d. 1210)
 Margaret of France, daughter of Louis VII (d. 1197)
 Philip of Dreux, bishop of Beauvais (d. 1217)
 Satō Tsugunobu, Japanese warrior (d. 1185)
 Taira no Shigehira, Japanese general (d. 1185)
 Theobald I, French nobleman and knight (d. 1214)
 Valdemar Knudsen, Danish bishop (d. 1236)
 Yvette of Huy, Belgian anchoress (d. 1228)

 Deaths 
 April 26 – Martirius, archbishop of Esztergom
 July 19 – Wibald, German monk and abbot (b. 1098) 
 July 27 – Geoffrey VI, count of Nantes (b. 1134)
 August 20 – Rögnvald Kali Kolsson, Earl of Orkney 
 August 31 – Sancho III, king of Castile (b. 1134)
 September 22 – Otto I, German bishop (b. 1114)
 December 15 – Frederick II, German archbishop
 Abu Jafar ibn Atiyya, Almohad vizier and writer
 Anselm of Havelberg, German bishop (b. 1100)
 Barthélemy de Jur, French bishop (b. 1080)
 Oda of Brabant, Belgian prioress and saint 
 Thorbjorn Thorsteinsson, Norwegian pirate