Columbia subject headings:
Byzantine Empire--History.
Crusades--Fourth, 1202-1204.
Gunther, von Pairis, approximately 1150-approximately 1210. Hystoria Constantinopolitana.
Istanbul (Turkey)--History--Siege, 1203-1204.
Harvard subject headings:
Byzantine Empire--History.
Crusades--Fourth, 1202-1204
Gunther, von Pairis, approximately 1150-approximately 1210. Hystoria Constantinopolitana.
Istanbul (Turkey)--History--Siege, 1203-1204.
Princeton subject headings:
Byzantine Empire--History.
Civilization, Medieval--13th century.
Crusades--Fourth, 1202-1204.
Gunther, von Pairis, approximately 1150-approximately 1210. Hystoria Constantinopolitana.
Istanbul (Turkey)--History--Siege, 1203-1204.