Theophilus was a Gothic bishop who attended the First Council of Nicaea in 325 CE and was among those who signed the Nicene Creed. His name is also sometimes spelled Theophilas, such as Theophilas Gothiae, or Theophilos. Although the original documents of the council have not survived, several versions of the list of bishops at Nicaea have been preserved. British Library owns a 6th-century manuscript of Antiochene Synodicon, collection of Syriac translations of records from several councils, including a list of 220 Nicaean bishops, among them "Theophilus of Gothia". Another gothic bishop that attended the council was Cadmus of Bosporus, from the Crimea. The bishops of Gothia were likely under the bishop of Constantinople's jurisdiction. Theophilus ministered to communities of Gothic Christians, in either the area west of the Black Sea and along the lower Danube, according to most scholars, or in Crimea. , or Gothia, the country of Visigoths from about 290 to 455 According to the "Ecclesiastical History" in Nicene and Post-Nicene Fathers, one of Theophilus' disciples was the Gothic bishop Ulfilas, and since Ulfilas was among the Western Goths, this supports the position that Theophilus was from the area of the lower Danube, west of the Black Sea, with the bishop's seat at Tomi. The Danube Goths, or Visigoths, were mostly pagans until Audius and Ulfilas spread the concept of Arianism in the 4th century, converting them to Christianity. He was succeeded as bishop by Ulfilas. Another disciple of Theophilus was Saint Nicetas the Goth, whose eulogy included "The sainted martyr of Christ, Nicetas, lived in the reign of the Great Tsar Constantine; he was a Goth by origin, from those who lived on the river Danube. Being pious and fearing God, and living in the city of Gatan, he was instructed in the Christian faith by Theophilus, the reverend bishop of Gothia." In Lectures on the History of the Eastern Church described Theophilus as a light-skinned man from the extreme north, among the "tawny hue and dark hair of all the rest."
