Brill Encyclopedia of Early Christianity Online

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An acrimonious debate over the doctrine of Christ between the Syrian bishops and Cyril of Alexandria (and his allies) was ignited by Cyril’s Twelve Anathemas, issued in November 430 CE, which appeared to the Syrians to be Apollinarian. Relations between the two parties broke down at the Council of Ephesus of 431 CE, where each of them met separately and claimed to be the authentic council (Councils/Synods). The “reunion” of …

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Price, Richard, “Chalcedon”, in: Brill Encyclopedia of Early Christianity Online, General Editor David G. Hunter, Paul J.J. van Geest, Bert Jan Lietaert Peerbolte. Consulted online on 22 September 2023 <>
First published online: 2018

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