Anastasius Bibliothecarius

Antipope

Anastasius
Papacy beganc. 17 July 855
Papacy endedc. 29 September 855
PredecessorRoman claimant:
Leo IV
Antipapal claimant:
John VIII
SuccessorRoman claimant:
Benedict III
Antipapal claimant:
Christopher
Other post(s)Abbot of Santa Maria in Trastevere
Bibliothecarius of the Roman Catholic Church
Personal details
Bornc. 810
Diedc. 878

Anastasius Bibliothecarius (c. 810 – c. 878) was the librarian (bibliothecarius) and chief archivist of the Church of Rome and also briefly a claimant to the Papacy.