The Canons of the Council in Trullo; Often Called The Quinisext Council 6Canon VI.

Since it is declared in the apostolic canons that of those who are advanced to the clergy unmarried, only lectors and cantors are able to marry; we also, maintaining this, determine that henceforth it is in nowise lawful for any subdeacon, deacon or presbyter after his ordination to contract matrimony but if he shall have dared to do so, let him be deposed. And if any of those who enter the clergy, wishes to be joined to a wife in lawful marriage before he is ordained subdeacon, deacon, or presbyter, let it be done.