Pope John XII can also refer to Pope John XII of Alexandria.Pope John XII (Latin: Ioannes XII; c.
930/937 – 14 May 964) was head of the Catholic Church from 16 December 955 to his death in 964.
He was related to the Counts of Tusculum and a member of the powerful Roman family of Theophylact which had dominated papal politics for over half a century.
His pontificate became infamous for the alleged depravity and worldliness with which he conducted his office.