According to the medieval poet Jean Bodel, the Matter of Rome is the literary cycle of Greek and Roman mythology, together with episodes from the history of classical antiquity, focusing on military heroes like Alexander the Great and Julius Caesar. Bodel’s division of literary cycles also included the Matter of France and the Matter of Britain (although "non-cyclical" romance also existed). The Matter of Rome includes the Matter of Troy, consisting of romances and other texts based on the Trojan War and its legacy, including the adventures of Aeneas.
Classical topics were the subjects of a good deal of Old French literature, which in the case of Trojan subject matter ultimately deriving from Homer was built on scant sources; since the Iliad and the Odyssey were unknown, medieval Western poets had to make do with two short prose narratives based on Homer, ascribed to Dictys Cretensis and Dares Phrygius. The paucity of original text did not prevent the 12th century Norman poet Benoît de Sainte-Maure from writing a lengthy adaptation, Le Roman de Troie, running 40,000 lines. The poems that were written on these topics were called the romans d'antiquité, the "romances of antiquity." This name presages the anachronistic approach the medieval poets used in dealing with these subjects. For example, in the epic poems Roman d'Alixandre and the Roman de Troie, Alexander the Great, and Achilles and his fellow heroes of the Trojan War were treated as knights of chivalry, not much different from the heroes of the chansons de geste. Elements of courtly love were introduced into the poems; in the Roman de Thèbes, a romantic relationship absent from the Greek sources is introduced into the tale of Parthenopæus and Antigone. Military episodes in these tales were also multiplied, and used to introduce scenes of knight-errantry and tournaments.
Another example of French medieval poetry in this genre is the Eneas, a treatment of the Aeneid that comes across as being a sort of burlesque of Virgil's poem.