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300–400 · Early Church

Maurus of Parentium is the patron saint of the Istrian city of Poreč/Parenzo in Croatia, called Parentium in Roman times. He is commemorated on November 21. According to one account, Maurus was of noble Roman birth, and became the city's first bishop.

250–304 · Early Church

Maxima of Rome was a slave and friend of Saint Ansanus of Siena. She was martyred by being beaten to death in the persecutions of Diocletian, circa 304. Locally recognized as saint, her feast day is September 2.

250 · Early Church

300–284 · Early Church

Saint Maximilian of Lorch or Saint Maximilian of Celeia (Latin: Maximilianus, Slovene: Maksimilijan Celjski, German Maximilian von Lorch; died 12 October 288) was a Catholic bishop and missionary in the Roman province of Noricum. He was martyred in AD 288.

274–295 · Early Church

Maximilian of Tebessa (Theveste), also known as Maximilian of Numidia, (Latin: Maximilianus; AD 274–295) was a Christian saint and martyr, whose feast day is observed on 12 March.

201–346 · Early Church

Maximin (born at Silly near Poitiers; — Poitiers 12 September 346) was the sixth bishop of Trier. His feast is 29 May. Maximin was an opponent of Arianism, and was close to the courts of Constantine II and Constans.

228–250 · Early Church

Saint Maximus of Aveia (died c. 250 AD) (sometimes also known as Saint Maximus of Aquila) is one of the patron saints of L'Aquila, Italy. He was born in Aveia, currently known as Fossa. As a deacon, he was martyred for his faith.

350 · Early Church

Saint Maximus of Jerusalem (Maximus III of Jerusalem) was an early Christian saint and bishop of Jerusalem from roughly 333 AD to his death in 347 AD. He was the third bishop of Jerusalem named Maximus, the other two being in the latter half of the 2nd century.

400 · Early Church

Maximus (born in the late 4th century or early 5th century; died the 5th century) was an ancient Roman bishop, thought to have been the second bishop of Mogontiacum (Mainz, now in Germany) and possibly the last to hold that position under the Roman Empire.

350–361 · Early Church

Saint Maximus (died 361 AD) was Bishop of Naples, who was sent into exile. Maximus was known as a great defender of the decrees of the Council of Nicaea, especially with the opposition to Arianism.

201–250 · Early Church

Maximus of Nola (Nola, 3rd century – Nola, February 7, 3rd century) was Bishop of Nola during the 3rd century, in the time of the Decian persecution; he is venerated as a saint by the Catholic Church.

166 · Early Church

Maximus of Padua served as a Roman Catholic Bishop of Padua and worked as a presbyter. He died in 166 and is recognized as a Catholic saint.

249–260 · Early Church

Saint Maximus (died 250) was a Christian saint and martyr. The emperor Decius published a decree ordering the veneration of busts of the deified emperors. Failure to pay homage to these idols would be considered high treason, prosecuted by torture and death.

400–420 · Early Church

Maximus of Turin (Italian: San Massimo; c. 380 – c. 465) was a Roman Christian prelate known as the first Bishop of Turin. He was a theological writer who "made a great contribution to the spread and consolidation of Christianity in Northern Italy".

172 · Early Church

Medicus of Otricoli was a physician who died in 172 in Otricoli. He is recognized as a saint.

350–410 · Early Church

Melania the Elder, Latin Melania Maior (c. 350 – before 410 or c. 417) was a Desert Mother who was an influential figure in the Christian ascetic movement (the Desert Fathers and Mothers) that sprang up in the generation after the Emperor Constantine made Christianity a legal rel…

383–439 · Early Church

Melania the Younger (c. 383 – 31 December 439) is a Christian saint, Desert Mother, and ascetic who lived during the reign of Emperor Honorius, son of Theodosius I. She is the paternal granddaughter of Melania the Elder.

400–381 · Early Church

Meletius of Antioch (Greek: Μελέτιος, Meletios) was a Christian patriarch of Antioch from 360 until his death in 381. He was opposed by a rival bishop named Paulinus II of Antioch and his episcopate was dominated by the schism, usually called the Meletian schism.

100–180 · Early Church

Melito of Sardis (Greek: Μελίτων Σάρδεων Melítōn Sárdeōn; died c. 180) was a Roman Christian prelate who served as Bishop of Sardis, near Smyrna in western Anatolia.

126–157 · Early Church

Melissa (Melissae or Melitine or Melitinḗ or Melitina; 28 February, 126 – 16 September, 157) was a virgin and martyr in 2nd-century Christian traditions, venerated as a saint.

229–314 · Early Church

Saint Mellonius (229-314) was an early 4th-century Bishop of Rotomagus (now Rouen) in the Roman province of Secunda Provincia Lugdunensis (now Normandy in France).

250–300 · Early Church

Saint Memmius (French: Menge, Meinge, Memmie) is venerated as the first bishop of Châlons-sur-Marne (now Châlons-en-Champagne), and founder of the diocese.

443 · Early Church

Memnon was metropolitan bishop of Ephesus during the third ecumenical council. At the Council he was a supporter of Cyril of Alexandria. Delays in the opening of the council were blamed by Nestorius on Memnon.

451 · Early Church

Memorius (Latin: Memorius; executed in 451) was a deacon and hieromartyr from Troyes. His feast day is September 7. Saint Memorius and his companions were martyred by Attila and other Huns. Saint Memorius was a deacon in Troyes (modern-day France).

285–309 · Early Church

Menas of Egypt , a martyr and wonder-worker, is one of the most well-known Coptic saints in the East and the West, due to the many miracles that are attributed to his intercession and prayers.

301–406 · Early Church

Mercurialis (Italian: Mercuriale) was the Christian bishop of Forlì, in Romagna. The historical figure known as Mercurialis attended the Council of Rimini in 359 and died around 406. He was a zealous opponent of paganism and Arianism.

628–401 · Early Church

Saint Meriasek (Breton: Meriadeg) was a 6th-century Cornish and Breton saint. The legends of his life are known through Beunans Meriasek, a Cornish language play known from a single surviving manuscript copy dated 1504, and a few other sources.

362–440 · Early Church

Mesrop Mashtots (listen ; Armenian: Մեսրոպ Մաշտոց, romanized: Mesrop Maštoc' 362 – 17 February 440 AD) was an Armenian linguist, composer, theologian, statesman, and hymnologist. He is venerated as a saint in the Armenian Apostolic Church.

235–249 · Early Church

Messalina of Foligno (Italian: Santa Messalina di Foligno; 235–249) was a 3rd-century Italian Christian consecrated virgin and martyr who was a disciple of Felician of Foligno.

260–311 · Early Church

Methodius of Olympus (Koine Greek: Μεθόδιος) (died c. 311) was an early Christian bishop, ecclesiastical author, and martyr. Today, he is honored as a saint and Church Father; the Catholic Church commemorates his feast on June 20.

101–249 · Early Church

Saint Metranus was born in Egypt in 101 and died in Alexandria in 249.

300–326 · Early Church

Metrophanes of Byzantium (Greek: Μητροφάνης; died 314) was bishop of Byzantium from c. 306 to 314. He was, according to tradition, the 26th bishop and is the first bishop mentioned by contemporary sources.

441 · Early Church

Saint Michomer was an Irish citizen and a member of the Catholic Church. He died in Tonnerre in 441.

314 · Early Church

Pope Miltiades (Ancient Greek: Μιλτιάδης, Miltiádēs), also known as Melchiades the African (Μελχιάδης ὁ Ἀφρικανός Melkhiádēs ho Aphrikanós), was the bishop of Rome from 311 to his death on 10 or 11 January 314.

250–250 · Early Church

Saint Minias (died 250 AD), also known as Minas (Armenian: Մինաս) or Miniatus (Italian: Miniato), is venerated as the first Christian martyr of Florence. The church of San Miniato al Monte is dedicated to him.

265–361 · Early Church

Mirian III (Georgian: მირიან III; c. 258/277 — 361) was a king (mepe) of Iberia or Kartli (Georgia), contemporaneous to the Roman emperor Constantine the Great (r. 306–337). He was the founder of the royal Chosroid dynasty.

201–316 · Early Church

Mirocles (or Merocles, Italian: Mirocle) was Bishop of Milan from before 313 to c. 316. He is honoured as a Saint in the Catholic Church and his feast day is on December 3. Almost nothing is known about the life of Mirocles.

201–300 · Early Church

Mirope of Chios (Ephesus, 3rd century – Chios, 3rd century) was a young Christian who, during the persecutions of Decius, moved to the island of Chios with her mother (her father was deceased).

295 · Early Church

Saint Mocius (Greek: Μώκιος; died 288–295) was a Christian priest of Roman ancestry who lived in Amphipolis, Macedonia and became a Catholic and Orthodox saint.

388 · Early Church

Saint Modéran I de Rennes served as a bishop. He died in 388.

251 · Early Church

Moses of Rome (Rome, 3rd century – 251) was a Roman priest and dean of the college that governed the Catholic Church following the death of Fabian. He is venerated as a saint by various Christian denominations.

456 · Early Church

Saint Monessa (died 456) was a Christian saint who lived in the 5th century. According to tradition, Monessa was the daughter of an Irish chieftain. She was converted by Saint Patrick and died immediately after receiving baptism. Her feast day is celebrated on September 4.

304 · Early Church

Montanus was the second century founder of Montanism and a self-proclaimed prophet. Montanus emphasized the work of the Holy Spirit, in a manner which set him apart from the Great Church. Little is known about the life of Montanus.

260 · Early Church

Montanus of Carthage (died 259) was a Christian martyr and a disciple of Cyprian of Carthage who died during the persecution of Valerian. He is a Christian saint commemorated, along with Saint Lucius and their companions, on May 23 in the West and February 24 in the East.

410–490 · Early Church

Movses Khorenatsi was a prominent Armenian historian from late antiquity and the author of the History of the Armenians. Movses's History of the Armenians was the first attempt at a universal history of Armenia and remains the only known general account of early Armenian history…

320–395 · Early Church

Moses the Black (Coptic: Ⲙⲟⲥⲉⲥ; Greek: Μωϋσῆς ὁ Αἰθίοψ, romanized: Mōüsês ho Aithíops; Arabic: موسى الحبشي; 330–405), also known as Moses the Strong, Moses the Robber, and Moses the Nubian , was a Nubian ascetic hieromonk in Egypt in the fourth century AD, and a Desert Father.

304 · Early Church

Saint Muci de Bizanci was born in Amphipolis and died in 304. He is recognized as a saint.

250–310 · Early Church

Saint Munditia (or Mundita) is venerated as a Christian martyr. Her relics are found in a side altar at St. Peter's Church (known as "Old Peter," Alter Peter) in Munich.

201–300 · Early Church

Mustiola (3rd century – 3rd century) was a Christian martyr whom the Catholic Church considers a saint. She is the patron saint of Chiusi and Scavolino, a hamlet of Pennabilli, as well as of Santa Mustiola.

488 · Early Church

Mél of Ardagh, also written Mel or Moel, was a 5th-century saint in Ireland who was a nephew of Saint Patrick. He was the son of Conis (or Chonis) and Patrick's sister, Darerca.