Marinus of Thrace (Greek: Μαρῖνος)[1] (floruit c. 385 until 420–423 at latest)[2] was briefly undisputed Arian Archbishop of Constantinople after the death of bishop Demophilus around 386.
When Dorotheus arrived from Syria, he was immediately installed as the new archbishop, having been considered by his sect to be better qualified for the office than Marinus.
[4] It was also cited that the sect has been unhappy with Marinus' deposition, particularly as he represented the views of his party, which became associated with the positions taken by Selenas bishop of the Goths.
[3] A key difference, for instance, was the manner by which Dorotheus denied the eternal fatherhood of God while Marinus asserted it.
[5] This sect became known as the Psathyrians, which included Theoctistus - one of its most prominent champions - who was by profession a cake-seller (ψαθυροπώλης).