1. Alcimi Ecdici Aviti Viennensis episcopi opera quae supersunt, Monumenta Germaniae Historica Auctores Antiquissimi 6.2, ed. R. Peiper (Berlin: Weidmann, 1883), Ep. 31.62: “Unde illud, si mereor, quam primum desidero, utrum in domno clementiae vestrae patre mentio illius ordinationis acciderit, quae Bonosiacorum pestem ab infernalibus latebris excitatam catholicis Arrianisque certantibus intromisit.” This and all subsequent translations of Avitus taken from Avitus of Vienne, Letters and Selected Prose, ed. D. Shanzer and I.N. Wood, Translated Texts for Historians 38 (Liverpool: Liverpool University Press, 2002), 231. This article is supported by the I-CORE program of the Planning and Budgeting Committee of the Israeli Committee for Higher Education and the Israel Science Foundation (ISF) Grant no. 1754. I would like to thank Yitzhak Hen, Ian Wood, Uta Heil, and the anonymous readers for their valuable comments and corrections. Any remaining errors are of course my own.
2. On Bonosus, the starting point is K. Schäfferdiek, “Bonosus von Naissus, Bonosus von Serdika und die Bonosianer,” Zeitschrift für Kirchengeschichte 96 (1985): 162–178, who would like to see Bonosus of Naissus and Bonosus of Serdica as two separate persons. See also F. Loofs, “Bonosus und Bonosianer,” Realencyklopädie für protestantische Theologie und Kirche, ed. A. Hauck (Leipzig: J.C. Hinrichs, 1897), III.3: 314–317; X. Le Bachelet, “Bonose,” Dictionnaire de théologie catholique, ed. J.M. Alfred Vacant and E. Mangenot (Paris: 1899–1950), 2: 1027–1031; G. Jouassard, “Un évêque de l'Illyricum condamné pour erreur sur la Sainte Vierge: Bonose,” Revue des études byzantines 19 (1961): 124–129; U. Heil, Avitus von Vienne und die homöische Kirche der Burgunder (Berlin: De Gruyter, 2011), 81–85 and passim.
3. On Capua and its consequences for clergy ordained by Bonosus before and after the schism, see G.D. Dunn, "Innocent I on Heretics and Schismatics as Shaping Christian Identity," in Christians Shaping Identity from the Roman Empire to Byzantium: Studies Inspired by Pauline Allen, ed. G.D. Dunn and W. Mayer, Supplements to Vigiliae Christianae: Texts and Studies of Early Christian Life and Language, vol. 132 (Leiden and Boston: Brill, 2015): 266-290, esp. at 278-282
4. G.D. Dunn, "Innocent I and the Illyrian Churches on the Question of Heretical Ordination," Journal of the Australian Early Medieval Association 4 (2008): 65-81.
5. Innocent I, Epp. 16, 17, Patrologia Latina, ed. J.P. Migne, 20.519–521 and 20.526–537 respectively. See G.D. Dunn, “The Letter of Innocent I to Marcian of Niš,” in Saint Emperor Constantine and Christianity: International Conference Commemorating the 1700th Anniversary of the Edict of Milan, 31 May – 2 June 2013, ed. D. Bojović (Niš: The Centre of Church Studies, 2013), 319–338.