11 December (28 November O.S.):
- FIONNCHU, the successor of St. Comgall (10th May) at the monastery of Bangor.
- HIPPOLYTUS, a bishop of Saint-Claude who reposed circa 775.
- PAPINIANUS AND MANSUETUS, fifth century bishops in North Africa who were martyred under the Arian Vandal King Genseric.
- RUFUS AND COMPANIONS, A Roman who was martyred with his entire household under Diocletian in 304.
- VALERIAN, URBAN, CRESCENS, EUSTACE, CRESCONIUS, CRESCENTIAN, FELIX, HORTULANUS AND FLORENTIAN, fifth century North African bishops who were exiled by the Arian King Genseric. They reposed in exile and were afterwards honoured as confessors for Orthodoxy.
* - Prior to the Schism the Patriarchate of Rome was Orthodox and fully in communion with the Orthodox Church. As Saint John of Shanghai and San Francisco +1966 said "The West was Orthodox for a thousand years, and her venerable Liturgy is far older than any of her heresies."