Pope St. Adrian III, of Roman extraction, was elected in the beginning of the year 884, and died near Modena in the summer of the following year, while on his way to the diet summoned by Charles the Fat to determine the succession to the Empire. He was buried in the monastery of Nonantula, where his memory has ever since been held in local veneration. By decree of Pope Leo XIII the clergy of Rome and Modena celebrate his Mass and office ritu duplici on 7 September.

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