'''Domnus''' (or '''Domnio''') was the metropolitan bishop of Sirmium early in the fourth century. He probably succeeded Irenaeus, the first known bishop of Sirmium, who was martyred in 304. He was deposed after 325 and before 337.<ref name=Zeiller>Jacques Zeiller, [https://books.google.com/books?id=O5xbAAAAMAAJ ''Les origines chrétiennes dans les provinces danubiennes de l'Empire romain''] (Paris: E. de Boccard, 1918), pp. 143–45.</ref> By 343 he was dead.<ref name=Duval>Yves-Marie Duval, [https://www.openstarts.units.it/bitstream/10077/17434/1/02-Duval_331-379.pdf "Aquilée et Sirmium durant la crise arienne"], ''Antichità Altoadriatiche'' '''26''', 2 (1985): 345–54.</ref>
Domnus was one of just five bishops from the Latin-speaking western half of the Roman Empire known to have attended the First Council of Nicaea in 325.<ref>R. C. P. Hanson, ''The Search for the Christian Doctrine of God: The Arian Controversy 318–381'' (Grand Rapids: Baker Academic, 2005 [1988]), p. 156.</ref> He is mentioned in the lists of signatories to the canons and the Nicene Creed as ''Domnus Pannoniae'' (Domnus of Pannonia), ''Domnus Pannoniensis'' (the Pannonian) or ''Domnus metropolitanus'' (the metropolitan), without mention of a see.<ref name=Zeiller/><ref>Ernest Honigmann, "Une list inédite des pères de Nicée: Cod. Vatic. Gr. 1587, fol. 355r–357v", ''Byzantion'', '''20''' (1950), pp. 63–71, no. 186 at p. 67: δόμνος πανονίας.</ref> Similarly, when Domnus' successor at Sirmium, Eutherius, attended the Council of Serdica in 343, the lists named him only as ''a Pannoniis'' (from Pannonia). Since Sirmium was the capital of the province of Pannonia Secunda at the time and the largest and richest city in all of Pannonia, it is likely that it was the metropolis of the church there and it was understood that the Domnus and Eutherius represented their entire province.<ref name=Zeiller/>
Towards the end of the reign of Constantine I around the time of the First Council of Tyre in 335,<ref name=Duval/> Domnus was the victim of the anti-Nicene reaction that took hold in Pannonia. According to Athanasius of Alexandria's ''History of the Arians'', Domnus was deposed, forced into exile and replaced because he "hated the <nowiki>[</nowiki>Arian<nowiki>]</nowiki> heresy".<ref>Carlos R. Galvao-Sobrinho, ''Doctrine and Power: Theological Controversy and Christian Leadership in the Later Roman Empire'' (University of California Press, 2013), p. 103.</ref> It is only Athanasius' contemporary reference to ''Domnus Sirmii'' that allows the bishop of Sirmium and the Nicene bishop to be connected.<ref name=Zeiller/> It is possible, however, reconstruct a nearly complete list of Catholic and Arian bishops of Sirmium for the fourth century.<ref>Julia Valeva and Athanasios K. Vionis, "The Balkan Peninsula", in William Tabbernee (ed.), ''Early Christianity in Contexts: An Exploration across Cultures and Continents'' (Grand Rapids: Baker Academic, 2014), pp. 321–78, at 360.</ref><ref>Maddalena Betti, ''The Making of Christian Moravia (858–882): Papal Power and Political Reality'' (Leiden: Brill, 2014), p. 198.</ref><ref>Zeiller, ''Les origines'', p. 598.</ref>
Older works sometimes refer to Domnus of Pannonia as "Domnus of Stridon" (''Domnus Stridonensis''). This is an error. The village of Stridon, birthplace of Saint Jerome, did not have bishops. Rather, in some lists of Nicene signatories the name preceding that of Domnus, ''Budius Stobiensis'' (bishop of Stobi), has been corrupted to ''Stribon''(''ensis'') and then mistakenly applied to Domnus, being hypercorrected in the process to ''Stridon''(''ensis''). This error appears in the ''Illyricum sacrum'' (1751) and in Giovanni Domenico Mansi's ''Sacrorum Conciliorum nova et amplissima collectio'' (1758–98).<ref name=Zeiller/><ref>J. N. D. Kelly, ''Jerome: His Life, Writings, and Controversies'' (Duckworth, 1975), p. 3, n. 6.</ref>
==References== {{reflist}}
==Further reading== *Heinrich Gelzer, Heinrich Hilgenfeld and Otto Cuntz, eds. [https://archive.org/details/patrumnicaenoru00cuntgoog ''Patrum Nicaenorum Nomina Latine Graece Coptice Syriace Arabice Armeniace'']. Leipzig: Teubner, 1898.
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Category:4th-century births Category:4th-century bishops in Pannonia Category:Illyrian people Category:Year of birth missing Category:Year of death missing Category:People from Sirmium Category:Participants in the First Council of Nicaea