Pope Stephen V - Definition and Overview

Stephen V, Pope from June 816-January 817, succeeded Leo III, whose policy he continued. Immediately after his consecration he ordered the Roman people to swear fidelity to the Frankish king Louis the Pious, to whom he found it prudent to betake himself personally in the following August. After the coronation of Louis at Reims in October, he returned to Rome, where he died in the beginning of the following year. His successor was Pope Paschal I

There is a problem in numbering the Popes Stephen -- see Pope Stephen II for the explanation.

from the 9th edition (1887) of an unnamed encyclopedia.