It is uncertain whether the clericus Valerianus of Fermo in letter 9.52 [2310] is the same person as mentioned in this and the previous (9.58, [2311]) letters. In the latter, Gregory orders Bishop Passivus of Fermo to consecrate the oratory mentioned in the present letter.
It is just possible that this Valerianus should be identified with Presbyter Valerianus who ransomed the captives in Cyrenaica with Gregory's support in 592 [2309].