V. Anatolius shows no contrition in his subsequent acts.
This too we would have you know, that bishop Anatolius after our prohibition so persisted in his rash presumption as to call upon the bishops of Illyricum to subscribe their names: this news was brought us by the bishop who was sent by the bishop of Thessalonica to announce his consecration. We have declined to write to Anatolius about this, although you might have expected us to do so, because we perceived he did not wish to be reformed. I have made two versions of my letter to the Synod, one with a copy of my letter to Anatolius subjoined, one without it; leaving it to your judgment to deliver the one which you think ought to be given to our most clement prince and to keep the other. Dated 21st March, in the consulship of the illustrious Opilio (453).
Source: Letters (New Advent)