Eustratius of Nicaea

Eustratius of Nicaea, who lived from about 1050 or 1060 until about 1120, was a Byzantine scholar who served as metropolitan bishop of Nicaea and specialized in logic, producing commentaries on Aristotle's Posterior Analytics and on books one and six of the Nicomachean Ethics. A student of John Italus, he distanced himself from his teacher's condemned views after Italus's fall around 1082, and gained favor with Emperor Alexios I Komnenos by defending the use of icons against charges of imperial iconoclasm, a defense that helped secure his own position as metropolitan bishop. He taught at the University of Constantinople, where his students included Michael of Ephesus, but in 1117 he faced heresy charges before the Synod of Constantinople and was suspended for life, though he was rehabilitated after his death.