1.
Angold M. The road to 1204: the Byzantine background to the Fourth Crusade. Journal of Medieval History [Internet]. 25(3):257–78. Available from: http://ezproxy.lib.gla.ac.uk/login?url=http://www-tandfonline-com/doi/full/10.1016/S1304-4184%2899%2900003-2
2.
Harris J. The Debate on the Fourth Crusade. History Compass. 2004 Jan;2(1):**-**.
3.
Madden TF. Outside and Inside the Fourth Crusade. The International History Review [Internet]. 1995;17(4):726–43. Available from: https://ezproxy.lib.gla.ac.uk/login?url=https://www.jstor.org/stable/40107441
4.
Noble P. The importance of Old French chronicles as historical sources of the Fourth Crusade and the early Latin Empire of Constantinople. Journal of Medieval History. 2001 Dec;27(4):399–416.
5.
Hazard HW, Wolff RL, University of Wisconsin-Madison. Libraries. The later Crusades, 1189-1311 [Internet]. 2nd ed. Vol. A history of the Crusades. Madison: University of Wisconsin Press; 1969. Available from: https://digital.library.wisc.edu/1711.dl/History.CrusTwo
6.
Joinville J, Villehardouin G de, Shaw MRB. Chronicles of the Crusades. Vol. Penguin classics. Harmondsworth: Penguin Books; 1963.
7.
Medieval Sourcebook: Villehardouin: Memoirs or Chronicle of The Fourth Crusade and The Conquest of Constantinople [Internet]. Available from: https://sourcebooks.fordham.edu/basis/villehardouin.asp
8.
Gunther, Andrea AJ. The capture of Constantinople: the Hystoria Constantinopolitana of Gunther of Pairis [Internet]. Philadelphia: University of Pennsylvania Press; 1997. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=3441529
9.
Choniates N, Magoulias HJ. O city of Byzantium: Annals of Niketas Choniatēs. Vol. Byzantine texts in translation. Detroit: Wayne State University Press; 1984.
10.
Clari R de, McNeal EH, American Council of Learned Societies. The conquest of Constantinople [Internet]. Vol. [no. 23]. New York: W.W. Norton; 1969. Available from: https://ezproxy.lib.gla.ac.uk/login?url=https://hdl.handle.net/2027/heb.05986
11.
Andrea AJ. Contemporary sources for the Fourth Crusade. Vol. Medieval Mediterranean. Leiden: Brill; 2000.
12.
Ridyard SJ, Sewanee Mediaeval Colloquium. The medieval crusade. Vol. Sewanee mediaeval studies. Woodbridge, Suffolk: Boydell Press; 2004.
13.
Angold M. The Fourth Crusade: event and context. Vol. The medieval world. Harlow: Longman; 2003.
14.
Bartlett WB. An ungodly war: the sack of Constantinople & the Fourth Crusade. Stroud: Sutton Publishing; 2000.
15.
Shepard J, editor. The Cambridge History of the Byzantine Empire c500-1492 [Internet]. Cambridge: Cambridge University Press; 2009. Available from: https://ezproxy.lib.gla.ac.uk/login?url=https://dx.doi.org/10.1017/CHOL9780521832311
16.
Phillips J. The Fourth Crusade and the sack of Constantinople. London: Jonathan Cape; 2004.
17.
Bull MG, Housley N. The experience of crusading: Vol. 1: Western approaches. Cambridge: Cambridge University Press; 2003.
18.
Queller DE, Madden TF. The Fourth Crusade: the conquest of Constantinople. 2nd ed. Vol. Middle Ages series. Philadelphia, Pa: University of Pennsylvania Press; 1997.
19.
Tricht F van. The Latin renovatio of Byzantium: the Empire of Constantinople (1204-1228) [Internet]. Vol. The medieval Mediterranean : peoples, economies, and cultures, 400-1500. Leiden: Brill; 2011. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=737788
20.
Wolff RL. The `Second Bulgarian Empire.’ Its Origin and History to 1204. Speculum [Internet]. 1949 Apr;24(2):167–206. Available from: https://ezproxy.lib.gla.ac.uk/login?url=https://www.jstor.org/stable/2848560
21.
Internet History Sourcebooks Project [Internet]. Available from: http://readinglists.glasgow.ac.uk/items/A2496854-8EDE-6FAD-E647-9A2174E95869
