John VIII of Constantinople | |
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Ecumenical Patriarch of Constantinople | |
Church | Eastern Orthodox Church |
In office | 1 January 1064 – 2 August 1075 |
Predecessor | Constantine III of Constantinople |
Successor | Cosmas I of Constantinople |
Personal details | |
Born | John Xiphilinos c. 1010 |
Died | 2 August 1075 Constantinople (modern-day Istanbul, Turkey) |
Education | University of Constantinople |
Sainthood | |
Feast day | 30 August |
Venerated in | Eastern Orthodoxy Philosophy career |
Institutions | University of Constantinople |
Notable students | Michael Psellus |
Main interests | Jurisprudence |
John VIII of Constantinople (Greek: Ἰωάννης Ξιφιλῖνος; c. 1010 – 2 August 1075), a native of Trebizond, was a Byzantine intellectual,[1] jurist,[1] and Ecumenical Patriarch of Constantinople from 1064 to 1075. He was the uncle of John Xiphilinus, the Epimator. He is considered "an innovator in the field of the methodology of jurisprudential research".[2]