- Aug 11 William of Sens, French master builder and mason (built Canterbury Cathedral choir - 1st early Gothic architecture in England ), dies
- Sep 18 Louis VII, King of France (1137-1180), dies at 59 or 60
- Sep 19 Louis VII, the Younger, King of France (1137-80), dies at 59
- Sep 24 Manuel I Komnenos, Emperor of the Byzantine Empire (1143-80), dies at 61
Assassination
Drug Overdose
Gunshot Wound
Murder
Plane Crash
Suicide