Pope John XIII
Reigned from 1 October 965 to 6 September 972.
Born in Rome, Italy; died there.
Upon his election to the Holy See, he was imprisoned in the Castle of Sant' Angelo by the Italian nobles who resented the fact that he was the choice of Emperor Otto I.
Having escaped, he took refuge with Prince Pandulf of Capua, until restored in 966 by the intervention of Otto, whose son, Otto II, he crowned joint emperor with his father in 967.
He confirmed the See of Magdeburg, was active in organizing and extending the hierarchy, and decided numerous questions of ecclesiastical law.
New Catholic Dictionary