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John VIII Xiphilinos (Greek: Ιωάννης Η΄ Ξιφιλίνος), a native of Trebizond, was patriarch of Constantinople from 1064–1075. He was the uncle of John Xiphilinos the Epimator. John VIII also wrote a hagiography of Saint Eugenios of Trebizond.
ABBRIDG’D BY XIPHILIN
The most considerable Passages under the Roman emperors
from the time of Pompey the Great, to the Reign of Alexander Severus.