Semi-Arianism was a position regarding the relationship between God the Father and the Son of God, adopted by some 4th-century Christians. Though the doctrine modified the teachings of Arianism, it still rejected the doctrine that Father, Son, and Holy Spirit are co-eternal, and of the same substance, or consubstantial, and was therefore considered to be heretical by many contemporary Christians. Arius held that the Father, Son, and Holy Spirit were three separate essences or substances (ousia) and that the Son and Spirit derived their divinity from the Father, were created, and were inferior to the Godhead of the Father. Semi-Arians asserted that the Son was "of a similar substance" (homoiousios) as the Father but not "of the same substance" (homoousios). History Arianism was the view of Arius and his followers, the Arians, that Jesus was subordinate to, and of a different being (ousia) to God the Father. Arians opposed the view that the three persons of the Trinity were of one being or substance. Arianism spread among the Church of Alexandria and the Eastern Mediterranean. After the First Council of Nicaea condemned Arianism as heresy, many Christians adopted compromise views in which they remained in communion with Arians without adopting Arianism itself. Various formulae, such as the homoiousian and the homoean, were proposed to compromise between Arian teachings (heteroousios) and the doctrine of one substance (homoousios) asserted in the Nicene Creed. After the 325 Council of Nicea anathemized Arianism: the majority of the Eastern bishops, who agreed to the deposition of Athanasius of Alexandria at Tyre in 335 and received the Arians to communion at Jerusalem on their repentance, were not Arians. The Dedication Council of Antioch in 341 put forth a creed which was unexceptionable but for its omission of the Nicene formula "of One Substance." Even disciples of Arius such as bishop George of Laodicea (335-47) and Eustathius of Sebaste (c. 356–80) joined the moderate party, and after the death of Eusebius of Nicomedia, the leaders of the court faction, Ursacius of Singidunum, Valens of Mursa and Germinius of Sirmium, were not tied to any formula, for Emperor Constantius II himself hated Arianism, though he disliked Athanasius yet more. When Marcellus of Ancyra was deposed in 336, he was succeeded by Basil. Marcellus was reinstated by the Council of Serdica and bishop Julius of Rome in 343, but Basil was restored in 350 by Constantius, over whom he