29th December (16th December O.S.):
- ADELAIDE, a daughter of the King of Burgundy, she was married to Lothair II of Italy. She was rescued from brutality after his death by Otto the Great who married her. Widowed again, she was maltreated by her son and daughter-in-law. In old age she became the regent of the Empire. At the end of her life she became a nun and reposed in 999.
- ADO, originally from Burgundy, he became a monk at Prüm near Trier. He then travelled to Rome and upon his return he was consecrated Bishop of Vienne, where he reposed in 875. He was an excellent bishop and is remembered for the martyrology which bears his name.
- BEOC (BEANUS, DABEOC, MOBEOC), a fifth or sixth century founder of a monastery on an island in Lough Derg in Donegal.
- MARTYRS OF NORTH-WEST AFRICA, a large group of women martyred under Hunneric, Arian King of the Vandals in 482.
- VALENTINE, CONCORDIUS, NAVALIS AND AGRICOLA, early third century martyrs venerated at Ravenna.
* - 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."