1
Angold M. The road to 1204: the Byzantine background to the Fourth Crusade. Journal of Medieval History;25:257–78.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;2:**-**. doi:10.1111/j.1478-0542.2004.00114.x
3
Madden TF. Outside and Inside the Fourth Crusade. The International History Review 1995;17:726–43.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;27:399–416. doi:10.1016/S0304-4181(01)00018-5
5
Hazard HW, Wolff RL, University of Wisconsin-Madison. Libraries. The later Crusades, 1189-1311. 2nd ed. Madison: : University of Wisconsin Press 1969. https://digital.library.wisc.edu/1711.dl/History.CrusTwo
6
Joinville J, Villehardouin G de, Shaw MRB. Chronicles of the Crusades. Harmondsworth: : Penguin Books 1963.
7
Medieval Sourcebook: Villehardouin: Memoirs or Chronicle of The Fourth Crusade and The Conquest of Constantinople. https://sourcebooks.fordham.edu/basis/villehardouin.asp
8
Gunther, Andrea AJ. The capture of Constantinople: the Hystoria Constantinopolitana of Gunther of Pairis. Philadelphia: : University of Pennsylvania Press 1997. https://ebookcentral.proquest.com/lib/gla/detail.action?docID=3441529
9
Choniates N, Magoulias HJ. O city of Byzantium: Annals of Niketas Choniatēs. Detroit: : Wayne State University Press 1984.
10
Clari R de, McNeal EH, American Council of Learned Societies. The conquest of Constantinople. New York: : W.W. Norton 1969. https://ezproxy.lib.gla.ac.uk/login?url=https://hdl.handle.net/2027/heb.05986
11
Andrea AJ. Contemporary sources for the Fourth Crusade. Leiden: : Brill 2000.
12
Ridyard SJ, Sewanee Mediaeval Colloquium. The medieval crusade. Woodbridge, Suffolk: : Boydell Press 2004.
13
Angold M. The Fourth Crusade: event and context. 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. Cambridge: : Cambridge University Press 2009. 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. Philadelphia, Pa: : University of Pennsylvania Press 1997.
19
Tricht F van. The Latin renovatio of Byzantium: the Empire of Constantinople (1204-1228). Leiden: : Brill 2011. https://ebookcentral.proquest.com/lib/gla/detail.action?docID=737788
20
Wolff RL. The `Second Bulgarian Empire.’ Its Origin and History to 1204. Speculum 1949;24:167–206. doi:10.2307/2848560
21
Internet History Sourcebooks Project. http://readinglists.glasgow.ac.uk/items/A2496854-8EDE-6FAD-E647-9A2174E95869