Fourth Crusade links: A few of the many places on line to get info on the Fourth Crusade. Please bear in mind that some on-line articles about it may be, however unintentionally, biased (or even, simply, inaccurate).

OSMTH – Knights Templar – SMOTJ
http://www.ordotempli.org/collected_sources_from_4th_crusade_1204.htm
Translated excerpts from original sources on the Crusade

De Re Militari: The Society for Medieval Military History
"http://www.deremilitari.org/resources/sources/clari.htm"
Robert of Clari’s account of the Fourth Crusade

Medieval Sourcebook, from Fordham University
http://www.fordham.edu/halsall/basis/villehardouin.html
Geoffrey of Villehardouin’s account of the Fourth Crusade

Crusades-Encyclopedia
http://www.crusades-encyclopedia.com/primarysourcesfourthcrusade.html
Primary Sources of the Fourth Crusade