resists Aistulf, attacking the duchy of Rome, and imposing a poll-tax, [353];
appeals in vain to Constantine Kopronymus to defend Rome, [353];
appeals to Pipin, king of the Franks, [354];
leaves Rome for Pavia to persuade Aistulf to desist, [355];
on his refusal, crosses the Alps to Pipin, [356];
saves Europe from Mohammedan enthralment by union with Pipin, [357];
meeting of Stephen and Pipin at Pontigny, described by Anastasius, [358];
Pipin binds himself to protect the Roman Church and Commonwealth of which Stephen makes him Patricius, [359];
anoints Pipin as king of the Franks in the Church of St. Denys, [360];
is besieged in Rome by Aistulf, [361];