Pope John XI

Pope John XI (Latin: Ioannes XI; 910 – December 935) was the bishop of Rome and nominal ruler of the Papal States from March 931 to his death. The true ruler of Rome at the time was his mother, Marozia, followed by his brother Duke Alberic II of Spoleto. His pontificate occurred during the period known as Saeculum obscurum.

Source: Wikipedia — https://en.wikipedia.org/wiki/Pope_John_XI