The Roman des Sept Sages and Roman de Marques de Rome can be found in the Chansonnier d'Arras.
Bibliography
Brodtkorb, Lorna B. (1965). Le Roman de Pelyarmenus: A Preliminary Study and Partial Edition of an Unpublished Thirteenth-Century Prose Romance (PhD diss.). Yale University.ProQuest6509661
Speer, Mary B. (1974). "Cassidorus: The Fallen Hero". Romance Philology. 27 (4): 479–487. JSTOR44940841.
Speer, Mary B. (1983). "Recycling the Seven Sages of Rome". Zeitschrift für Romanische Philologie Tübingen. 99 (3–4): 288–303. doi:10.1515/zrph.1983.99.3-4.288.
Thorpe, Lewis, ed. (1950). Le Roman de Laurin, fils de Marques le Sénéchal: A First Contribution to the Study of the Linguistics of an Unpublished Thirteenth-Century Prose-Romance. Bowes and Bowes.