The song Chétifs deals with events set during the course of the First Crusade, as well as to the circumstances of its own composition, supposedly at the court of Raymond of Poitiers, prince of Antioch (r. 1136-1149). See this site's overview essay for more information on this text.
Paris, Bibliothèque nationale, MS fr.12558 (vellum, xiiimed)
Myers, Geoffrey M., Emanuel J. Mickel, Peter R. Grillo, and Jan A. Nelson. The Old French Crusade Cycle. Tuscaloosa University of Alabama Press, 1981.
For bibliography and further info on the crusade cycle see Arlima