3. For, prior to Valentinus, those who follow Valentinus had no existence; nor did those from Marcion exist before Marcion; nor, in short, had any of those malignant-minded people, whom I have above enumerated, any being previous to the initiators and inventors of their perversity. For Valentinus came to Rome in the time of Hyginus, flourished under Pius, and remained until Anicetus. Cerdon, too, Marcion’s predecessor, himself arrived in the time of Hyginus, who was the ninth bishop. Coming frequently into the Church, and making public confession, he thus remained, one time teaching in secret, and then again making public confession; but at last, having been denounced for corrupt teaching, he was excommunicated from the assembly of the brethren. Marcion, then, succeeding him, flourished under Anicetus, who held the tenth place of the episcopate. But the rest, who are called Gnostics, take rise from Menander, Simon’s disciple, as I have shown; and each one of them appeared to be both the father and the high priest of that doctrine into which he has been initiated. But all these (the Marcosians) broke out into their apostasy much later, even during the intermediate period of the Church.