18th December (5th December O.S.):
- BASILISSA, an abbess of Oehren near Trier who reposed circa 780.
- BASSUS, a bishop of Nice who was martyred under Decius circa 250. His body transfixed with two huge nails.
- CAWRDAF, a sixth century noble in Wales, who ended his life as a monk with St. Illtyd (6th November).
- CRISPINA, a wealthy matron in Thebeste in Numidia, North Africa, who, in 304, was horribly tortured and ultimately beheaded.
- DALMATIUS, born to pagan parents, he became a Christian and preached in the areas of present-day France and Italy until he became Bishop of Pavia in 303. He was martyred under Maximian Herculeus a year later.
- FRIMINUS, the seventh Bishop of Verdun.
- GERBOLD, a monk at Ebriciacum, who went on to found the monastery of Livray, and later was consecrated Bishop of Bayeux. He reposed circa 690.
- JOHN GRADENIGO, a Venician nobleman who became a monk in Cuxa in the Catalonian Pyrenees. After many trials, he reposed as a hermit near Montecassino in 1025.
- Julius, Potamia, Crispin, Felix, Gratus and Companions, twelve martyrs who suffered in Thagura in Numidia in North Africa under Diocletian in 302.
- JUSTINIAN (IESTIN), a sixth century hermit on the Isle of Ramsey off the coast of south Wales, where he was murdered and then venerated as a martyr.
- NICETIUS, the last of the Gallo-Roman bishops of Trier, consecrated in 532. He had been a monk and abbot in his native Auvergne. As bishop he withstood the cruelty of the Franks by whom he was exiled for a time. He restored discipline among the clergy, rebuilt the Cathedral and combatted heresy, reposing in 566.
- PELINUS, a martyr in the south of present-day Italy, who suffered under Julian the Apostate, reposing in 361.
- SIGIRANUS (CYRAN, SIRAN, SIGRAM), Son of the bishop of Tours, he became archdeacon there, before going on to become a monk and founding monasteries at Meobecq and Lonrey, and reposing somewhere between 655 — 690.
* - 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."