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- In councils of Lyon The second Council of Lyon was convened by Pope Gregory X in 1274 after Michael VIII Palaeologus, the Byzantine emperor, gave assurances that the Orthodox Church was prepared to reunite with Rome. By acknowledging the supremacy of the pope, Michael hoped to gain financial support for… Read More

- In Athanasius I …by the Second Council of Lyon in 1274. His efforts in reforming the Greek Orthodox Church encountered opposition from clergy and hierarchy. Read More


role of
- Acropolites
- In George Acropolites …to the Second Council of Lyon (1274), at which, in the emperor’s name, he acknowledged the supremacy of Rome. In 1282 he was sent on an embassy to John II, emperor of Trebizond (Trabzon), and died soon after his return. Read More