Apr 13 Diet of Gelnhausen; Henry the Lion deprived of the Duchy of Saxony Apr 28 Philip II of France (14) marries first wife Isabella of Hainault (10) at Bapaume Aug 17 Yoritomo Minamoto leads uprising against Kiyomori Taira who installed his grandson, Emperor Antoku, to the throne Sep 14 Minamoto no Yoritomo led force of 300 defeated at Battle of Ishibashiyama in Japan Sep 18 Philip Augustus becomes king of France Sep 24 Manuel I Komnenos, last Emperor of the Komnenian restoration dies. The Byzantine Empire slips into terminal decline. 1179 Historical Events by Year 1181 Medieval Popes Gregory I Gregory XIII Julius II Julius III Leo X Pius V
Gregory I
Gregory XIII
Julius II
Julius III
Leo X
Pius V