Ss. Eutychius of Constantinople and Anastasius of Antioch were deposed and exiled because they openly opposed Emperor St. Justinian's edict in 564 on Aphthartodocetism, the belief that Christ's body, from the incarnation, was incorruptible.
In the Hagiography of Eutychius of Constantinople we read:
After the death of the holy Patriarch Menas, the Apostle Peter appeared in a vision to the emperor Justinian and, pointing his hand at Eutychius, said, 'Let him be made your bishop.' At the very beginning of his patriarchal service, St Eutychius convened the Fifth Ecumenical Council (553), at which the Fathers condemned the heresies cropping up and anathematized them. However, after several years a new heresy arose in the Church: Aphthartodocetism or imperishability which taught that the flesh of Christ, before His death on the Cross and Resurrection, was not capable of suffering. St Eutychius vigorously denounced this heresy, but the emperor Justinian himself inclined toward it, and turned his wrath upon the saint. By order of the emperor, soldiers seized the saint in the church, removed his patriarchal vestments, and sent him into exile to an Amasean monastery (565).
The surviving extant about that edict is preserved by Evagrius Scholasticus:
At that time Justinian, abandoning the right road of doctrine, and following a path untrodden by the apostles and fathers, became entangled among thorns and briers; with which wishing to fill the Church also, he failed in his purpose, and thereby fulfilled the prediction of prophecy ; the Lord having secured the royal road with an unfailing fence, that murderers might not leap, as it were, upon a tottering wall or a broken hedge. Thus, at the time when John, named also Catelinus, was bishop of the elder Rome, after Vigilius; John from Seremis, of New Rome; Apollinaris, of Alexandria; Anastasius, of Theopolis, after Domninus; and Macarius, of Jerusalem, had been restored to his see; Justinian, after he had anathematized Origen, Didymus, and Evagrius, issued what the Latins call an Edict, after the deposition of Eustochius, in which he termed the body of the Lord incorruptible and incapable of the natural and blameless passions; affirming that the Lord ate before his passion in the same manner as after his resurrection, his holy body having undergone no conversion or change from the time of its actual formation in the womb, not even in respect of the voluntary and natural passions, nor yet after the resurrection. To this, he proceeded to compel the bishops in all quarters to give their assent. However, they all professed to look to Anastasius, the bishop of Antioch, and thus avoided the first attack.
Fr. Asterios Gerostergios in his book Justinian the Great: The Emperor and Saint, rejects the assertion that Justinian succumbed in his last years to the heresy of aphthartodocetism.
Eutychius himself later lapsed into the same heresy before renouncing it on his death bed. Was Justinian for a time temporarily fell into this aphthartodocetic heresy and repented shortly before his death bed similar to what happen to Eutychius latter? This question is not made to defame a holy and pious saint venerated by both Catholic and Orthodox. I ask this question to study a historical event in the Church history.