The Fourth Crusade continues, with the assault on Zara, a long winter in the city, and one reasonable occasion to go to Constantinople.
Geoffrey de Villehardouin. Memoirs or Chronicle of The Fourth Crusade and The Conquest of Constantinople, translated by Frank T. Marzials. J.M. Dent, 1908.
Three Old French Chronicles Of The Crusades: The History Of The Holy War; The History Of Them That Took Constantinople; The Chronicle Of Reims, translated by Edward Noble Stone. University Of Washington Publications In The Social Sciences, 1939.
O City of Byzantium, Annals of Niketas Choniates, translated by Harry J. Magoulias. Wayne State University Press, 1984.
Madden, Thomas F. Enrico Dandolo and the Rise of Venice. The Johns Hopkins University Press, 2003.
Madden, Thomas F. Venice: A New History. Viking, 2012.
Queller, Donald E. The Fourth Crusade: The Conquest of Constantinople, 1201-1204. Leicester University Press, 1978.