The first piece of historical information about Marcellus of Ancyra (d. 374 CE) is his presence as a young bishop in the Synod of Ancyra of Galatia, 314 CE (Turner, 1907, 32, 50–51). Possibly, he chaired the synod (Councils/Synods), even though he does not appear as such in the extant documents (Hanson, 1988, 217; Parvis, 2001). When the so-called “Arian” crisis began, the bishop of Ancyra took sides against Arius and his fellows (Arianism). In 325 CE, a few months before Nicaea, the bishops g…