From Monachos.net
Canons and rulings not having conciliar origin, but approved by name in Canon II of the Synod in Trullo. The canonical epistle of our holy father among the saints, Cyril, Archbishop of Alexandria, on the hymns
(c. AD 412)
Cyril to Domnus
This letter contains a complaint of one, Peter, deposed from his See, yet retaining the character of a bishop, who thought his cause good, but complains that he had not time and opportunity given him for his defence; and that whatever he had, was taken away from him. He desires Domnus, who was a Metropolitan, that he would call a synod, and let him have a hearing; and that such bishops as Peter suspected of prejudice against him should not be permitted to be his judges. He thinks it very hard, that not only what belonged to the Church, but every thing else was taken from him; and complains that all bishops were called to account for every thing they received, whether from the Church, or by any other means. Peter had indeed signed an instrument of resignation; but Cyril says, that he was terrified into it; and that he would have no such resignation be of force except he that made it deserved deposition.
Of the same, to the bishops of Libya and Pentapolis
There is another Epistle of the same father, complaining to the bishops of Libya and Pentapolis. That some who had been refused ordination by their own bishop, or east out of the monasteries for their irregularity, were ordained by a surprise upon some other bishop, and that just as they came from their bride-bed, and then went and performed the oblation, or any other office, in the monasteries from which they had been ejected, which gave great offence. He charges the bishops to take care of this for the future and, if any were to be ordained, to enquire into their lives, and whether they are married, and when, and how; and orders, that catechumens, who had been separated for lapsing, be baptized at the hour of death.