Victor of Tunnuna was a bishop from North Africa (probably in modern-day Tunisia) who lived in the sixth century CE and firmly defended what he saw as proper Catholic orthodoxy, whether in affirming the proceedings of the Council of Chalcedon (451 CE) as a whole or in its particulars. As such, he was a staunch advocate of the conventional Christian view today that Christ had two natures in one person (a fully human nature and a fully divine nature). In addition, he espoused the orthodox view of the three persons of the Trinity (the Father, the Son and the Holy Spirit) as co-substantial and co-eternal, contrasting with the Arian Vandals who dominated his region until being extirpated by the Byzantines.
In light of Victor's theological concerns, much of his chronicle, which represents a continuation of Prosper of Aquitaine's chronicle and spans a period of just under 125 years (c. 444-567 CE), consists of entries dealing with pushback against the Council of Chalcedon, foremost represented in Miaphysite and/or Monophysite trends (i.e. those who held there was a single nature of some sort in Christ rather than two natures), and later on the controversy over three particular chapters of the Council. For his defence of those three chapters in contrast to the Byzantine emperor Justinian's supposed opposition to them, Victor suffered repeated imprisonment, beatings and exile. He also appears to have died in exile.
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