Helvidius

Helvidius was the author of a work written prior to 383 against the belief in the perpetual virginity of Mary. Helvidius maintained that the biblical mention of "sisters" and "brothers" of the Lord constitutes solid evidence that Mary had normal marital relations with Joseph and additional children after the miraculous conception and birth of Jesus. He supported his opinion by the writings of Tertullian and Victorinus. Helvidius is sometimes seen as an early proto-protestant, along with Vigiliantius, Jovinian and Aerius of Sebaste.