Judging by the place of this passus in Gregory's narrative, Egidius and Epifanius were convicted in 590.
Abba Epifanius was almost certainly a presbyter responsible for the basilica of Saint Remigius in Reims, rather than a monastic supervisor. More on presbyters described as abba, see Pietri 1983.
It is impossible to determine in which diocese Romulfus was serving as a presbyter. It is likely that he was a presbyter at the court of King Childebert, just as the presbyter Theutharius was at the time (see [873]).