Recantation of Ursacius and Valens
Moreover Ursacius and Valens, as if suffering the scourge of conscience, came to another mind, and wrote to the Bishop himself a friendly and peaceable letter, although they had received no communication from him. And going up to Rome they repented, and confessed that all their proceedings and assertions against him were founded in falsehood and mere calumny. And they not only voluntarily did this, but also anathematized the Arian heresy, and presented a written declaration of their repentance, addressing to the Bishop Julius the following letter in Latin, which has been translated into Greek. The copy was sent to us in Latin by Paul, Bishop of Treveri.
Translation from the Latin.
Ursacius and Valens to my Lord the most blessed Pope Julius.
Whereas it is well known that we, etc.
Translation from the Latin.
The Bishops Ursacius and Valens to my Lord and Brother, the Bishop Athanasius.
Having an opportunity of sending, etc.
After writing these, they also subscribed the letters of peace which were presented to them by Peter and Irenæus, Presbyters of Athanasius, and by Ammonius a layman, who were passing that way, although Athanasius had sent no communication to them even by these persons.
Source: Historia Arianorum (New Advent)