Letters 33 and 34 were sent between 400 and 406 as in this period Victor, mentioned in Letter 33, served as a courier between southern Gaul and Nola.
This Alethius, which three manuscripts describe as a brother of Bishop Florentius of Cahors, should be almost certainly identified with the presbyter Alethius, brought up briefly in Jerome's letter 121.
Gregory of Tours cites the text of Paulinus of unknown provenance which mentions Alethius as Bishop of Cahors around 407/409 (Histories II.13).