Andrea, Alfred J. 2000. Contemporary Sources for the Fourth Crusade. Vol. Medieval Mediterranean. Leiden: Brill.
Angold, Michael. 2003. The Fourth Crusade: Event and Context. Vol. The medieval world. Harlow: Longman.
———. n.d. ‘The Road to 1204: The Byzantine Background to the Fourth Crusade’. Journal of Medieval History 25 (3): 257–78. http://ezproxy.lib.gla.ac.uk/login?url=http://www-tandfonline-com/doi/full/10.1016/S1304-4184%2899%2900003-2.
Bartlett, W. B. 2000. An Ungodly War: The Sack of Constantinople & the Fourth Crusade. Stroud: Sutton Publishing.
Bull, Marcus Graham, and Norman Housley. 2003. The Experience of Crusading: Vol. 1: Western Approaches. Cambridge: Cambridge University Press.
Choniates, Nicetas, and Harry J. Magoulias. 1984. O City of Byzantium: Annals of Niketas Choniatēs. Vol. Byzantine texts in translation. Detroit: Wayne State University Press.
Clari, Robert de, Edgar Holmes McNeal, and American Council of Learned Societies. 1969. The Conquest of Constantinople. Electronic resource. Vol. [no. 23]. New York: W.W. Norton. https://ezproxy.lib.gla.ac.uk/login?url=https://hdl.handle.net/2027/heb.05986.
Gunther, and Alfred J. Andrea. 1997. The Capture of Constantinople: The Hystoria Constantinopolitana of Gunther of Pairis. Electronic resource. Philadelphia: University of Pennsylvania Press. https://ebookcentral.proquest.com/lib/gla/detail.action?docID=3441529.
Harris, Jonathan. 2004. ‘The Debate on the Fourth Crusade’. History Compass 2 (1): **-**. https://doi.org/10.1111/j.1478-0542.2004.00114.x.
Hazard, Harry W., Robert Lee Wolff, and University of Wisconsin-Madison. Libraries. 1969. The Later Crusades, 1189-1311. Electronic resource. 2nd ed. Vol. A history of the Crusades. Madison: University of Wisconsin Press. https://digital.library.wisc.edu/1711.dl/History.CrusTwo.
‘Internet History Sourcebooks Project’. n.d. http://readinglists.glasgow.ac.uk/items/A2496854-8EDE-6FAD-E647-9A2174E95869.
Joinville, Jean, Geoffroi de Villehardouin, and Margaret R. B. Shaw. 1963. Chronicles of the Crusades. Vol. Penguin classics. Harmondsworth: Penguin Books.
Madden, Thomas F. 1995. ‘Outside and Inside the Fourth Crusade’. The International History Review 17 (4): 726–43. https://ezproxy.lib.gla.ac.uk/login?url=https://www.jstor.org/stable/40107441.
‘Medieval Sourcebook: Villehardouin: Memoirs or Chronicle of The Fourth Crusade and The Conquest of Constantinople’. n.d. https://sourcebooks.fordham.edu/basis/villehardouin.asp.
Noble, Peter. 2001. ‘The Importance of Old French Chronicles as Historical Sources of the Fourth Crusade and the Early Latin Empire of Constantinople’. Journal of Medieval History 27 (4): 399–416. https://doi.org/10.1016/S0304-4181(01)00018-5.
Phillips, Jonathan. 2004. The Fourth Crusade and the Sack of Constantinople. London: Jonathan Cape.
Queller, Donald E., and Thomas F. Madden. 1997. The Fourth Crusade: The Conquest of Constantinople. 2nd ed. Vol. Middle Ages series. Philadelphia, Pa: University of Pennsylvania Press.
Ridyard, Susan J. and Sewanee Mediaeval Colloquium. 2004. The Medieval Crusade. Vol. Sewanee mediaeval studies. Woodbridge, Suffolk: Boydell Press.
Shepard, Jonathan, ed. 2009. The Cambridge History of the Byzantine Empire C500-1492. Cambridge: Cambridge University Press. https://ezproxy.lib.gla.ac.uk/login?url=https://dx.doi.org/10.1017/CHOL9780521832311.
Tricht, Filip van. 2011. The Latin Renovatio of Byzantium: The Empire of Constantinople (1204-1228). Vol. The medieval Mediterranean : peoples, economies, and cultures, 400-1500. Leiden: Brill. https://ebookcentral.proquest.com/lib/gla/detail.action?docID=737788.
Wolff, Robert Lee. 1949. ‘The `Second Bulgarian Empire.’ Its Origin and History to 1204’. Speculum 24 (2): 167–206. https://doi.org/10.2307/2848560.
