Sep 11 Isaac II Angelus kills Stephanus Hagiochristophorites and then appeals to the people, resulting in the revolt that deposes Andronicus I Comnenus and places Isaac on the throne of the Byzantine Empire.
Famous Deaths
Sep 11 Stephanus Hagiochristophorites, Byzantine courtier
Sep 12 Andronicus I Comnenus, Byzantine emperor (1183-85), lynched