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Encyclopædia Britannica: Gregory III
Very brief summary of his pontificate. In the 11th edition (1911).
Pope Saint Gregory III
Pious reflection on his election and pontificate. By Terry Matz.
Pope St. Gregory III
A Syrian, was elected the successor of Pope St. Gregory II by acclamation, d. 741.
St. Gregory III
Short biography by Joseph Brusher.
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