III. The Names of Dioscorus, Juvenal, and Eustathius are not to be read aloud at the holy altar.
Concerning the reading out of the names of Dioscorus, Juvenal, and Eustathius at the holy altar, it beseems you, beloved, to observe that which our friends who were there present said ought to be done, and which is consistent with the honourable memory of S. Flavian, and will not turn the minds of the laity away from you. For it is very wrong and unbecoming that those who have harassed innocent Catholics with their attacks, should be mingled indiscriminately with the names of the saints, seeing that by not forsaking their condemned heresy, they condemn themselves by their perversity: such men should either be chastised for their unfaithfulness; or strive hard after forgiveness.
Source: Letters (New Advent)