Irish bishop, also called Frigidanus and Frigidian. He was reportedly a prince of Ireland who went on a pilgrimage to Rome and settled into a hermitage on Mount Pisano, near Lucca. The pope made him bishop of Lucca, but his see was attacked by Lombards. Frediano is believed to have founded a group of eremetical canons who merged with those of St. John Lateran in 1507.
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