Columbia subject headings:
Harvard subject headings:
Byzantine Empire--History--Alexius I Comnenus, 1081-1118.
Byzantine Empire--Intellectual life.
John, Italos, active 11th century--Trials, litigation, etc.
Trials (Heresy)--Turkey--Istanbul.
Princeton subject headings:
Byzantine Empire--Intellectual life.
John, Italos, active 11th century--Trials, litigation, etc.
Trials (Heresy)--Turkey--Istanbul.