Origen saw the Son of God as subordinate to God the Father. Even though this view of the Trinity was common at the time, it became controversial during the Arian controversy of the fourth century. A group who came to be known as Origenists, and who firmly believed in the preexistence of souls and the apokatastasis, were declared anathema in the 6th century. This condemnation is attributed to the Second Ecumenical Council of Constantinople (553), though it does not appear in the council's official documents.