Historical Events in 1181
- Aug 4 Supernova seen in Cassiopeia
- Aug 4 Supernova SN 1181 in the constellation Cassiopeia observed by Chinese and Japanese astronomers, lasting until August 6
- Sep 1 Ubaldo Allucingoli replaces Alexander III as Pope Lucius III
Francis of AssisiFamous People Who Died in 1181
- Jan 30 Emperor Takakura of Japan (b. 1161)
- Mar 21 Taira Kiyomori, Japanese Feudal general (b. 1118)
- Jun 30 Hugh de Kevelioc, 3rd Earl of Chester, English politician (b. 1147)
- Aug 30 Alexander III, [Orlando Bandinelli], Italian Pope (1159-81), dies