Ammonius cites Iamblichus who said "knowledge is intermediate between the knower and the known, since it is the activity of the knower concerning the known." Source: Internet
Ammonius signed the decretal letter of the Council of Constantinople in 518 against Severus of Antioch and others. Source: Internet
Eusebius, History of the Church, vi, 19. However, we are told by Longinus that Ammonius wrote nothing, Longinus, quoted by Porphyry, Life of Plotinus, xx. Source: Internet
Ammonius was subsequently captured and ordered to be tortured for his actions, during which he died. Source: Internet
Damascius, Philosophos Historia, 118B, Athanassiadi Damascius, who scolds Ammonius for the agreement that he made, does not say what the concessions were, but it may have involved limitations on the doctrines he could teach or promote. Source: Internet
Eventually, they returned to Alexandria, where Ammonius, as head of the Neoplatonist school in Alexandria, lectured on Plato and Aristotle for the rest of his life. Source: Internet