 The story of Hannibal Monomachus is given in book IX of Polybius' "Histories".Trasilla and Emiliana

Saints Trasilla (Tarsilla, Tharsilla, Thrasilla) and Emiliana were aunts of St. Gregory the Great, and venerated as virgin saints of the sixth century.They appear in the "Roman Martyrology", the former on 24 December, the latter on 5 January.