Catullus more or less disappeared from sight between Isidore of Seville who in the seventh century quoted two passages (attributing one to Calvus) and somewhere around 1300 when Hieremias de Montagnone of Padua quoted seven passages in his Compendium Moralium Notabilium, followed in 1329 by a citation from the 22nd poem in an anonymous Liber Florum Moralium Auctoritatum in Verona. Catullus reemerges in the fourteenth century implausibly, like Ovid and Martial, as a purveyor of moral saws.

Two shafts of light break the darkness. One is a ninth-century MS (Paris Lat. 8071), Codex Thuaneus (T), once owned by Jacques de Thou (1553-1617), containing the 62nd poem, Epithalamium Catulli, in an anthology of Latin poetry. Centuries older than the rest of the tradition, in the lacuna after 62.32 and in other mistakes it is close to the rest. Still, it is independent and important. 62.7 is a simple example. Modern editors read Oetaeos. T has oeta eos, the rest hoc eos.