Pope Saint Callixtus I or Callistus I, was pope from about 217 to about 222, during the reigns of the Roman Emperors Elagabalus and Alexander Severus. He was martyred for his Christian faith and is a saint of the Roman Catholic Church.
Pope Sixtus II or Pope Saint Sixtus II (a corruption of Greek Ξυστος, Xystus, "polished") was Pope from August 30, 257 to August 6, 258. He died as a martyr during the persecution by Emperor Valerian. According to the Liber Pontificalis, he was Greek by birth; however this is uncertain and disputed by modern western historians arguing that the authors of Liber Pontificalis confused him with that of the contemporary author Xystus who was Greek student of Pythagoreanism.
Pope Saint Urban I was pope from 14 October 222 to 230. He was born in Rome, Roman Empire and succeeded St. Callixtus I who had been martyred. For centuries it was believed that Urban too was martyred, however recent historical discoveries now lead scholars to believe that he died of natural causes. Much of Urban's life is shrouded in mystery, leading to many myths and misconceptions. Despite the lack of sources he is the first Pope whose reign can be definitely dated.
Pope Saint Stephen I served as Bishop of Rome from 12 May 254 to 2 August 257. Of Roman birth but of Greek ancestry, he became bishop of Rome in 254, having served as archdeacon of Pope Lucius I, who appointed Stephen his successor.
Pope Saint Anterus was pope from November 21, 235 to January 3, 236, and succeeded Pope Pontian, who had been deported from Rome along with the antipope Hippolytus to Sardinia. Anterus was the son of Romulus, born in Petilia Policastro. He was pope for only one month and ten days, and is thought to have been of Greek origin, but the name could indicate that he was a freed slave. He created one bishop for the city of Fondi.
Pope Saint Lucius I was Pope from June 25, 253 to March 5, 254. St. Lucius was born in Rome at an unknown date; nothing is known about his family except his father's name, Porphyrianus. He was elected probably on June 25, 253, and died on March 5, 254. His election took place during the persecution which caused the banishment of his predecessor Pope Cornelius, and he also was banished soon after his consecration, but succeeded in gaining permission to return.
Pope Saint Zephyrinus, born in Rome, was bishop of Rome from 199 to 217. His predecessor was bishop Victor I. Upon his death on December 20, 217, he was succeeded by his principal advisor, bishop Callixtus I.
Pope Saint Pontian or Pontianus, was pope from 21 July 230 to 29 September 235. A little more is known of Pontian than his predecessors, apparently from a lost papal chronicle that was available to the compiler of the Liberian Catalogue of bishops of Rome, made in the fourth century (Catholic Encyclopedia). During his pontificate the schism of Hippolytus came to an end.
Pope Saint Fabian was Pope, or Bishop of Rome, from January 10, 236 to January 20, 250, succeeding Pope Anterus. Eusebius relates how the Christians, having assembled in Rome to elect a new bishop, saw a dove alight upon the head of Fabian, a layman and stranger to the city, who was thus marked out for this dignity and was at once proclaimed bishop by acclamation, although there were several famous men among the candidates for the vacant position.
Pope Saint Eutychian or Eutychianus was pope from January 4, 275 to December 7, 283 (according to the Annuario Pontificio of 2003). His original epitaph was discovered in the catacomb of Callixtus (see Kraus, Roma sotterranea, p. 154 et seq. ), but almost nothing more is known of him. Even the date of his reign is uncertain. Liber Pontificalis gives a reign of 8 years and 11 months, from 275 to 283. Eusebius, on the other hand says his reign was only 10 months.
Pope Saint Caius or Gaius was Pope from December 17, 283 to April 22, 296. Christian tradition makes him a native of the Dalmatian city of Salona, today Solin near Split, the son of a man also named Caius, and a member of a noble family related to the Emperor Diocletian. Little information on Caius is available except that given by the Liber Pontificalis, which relies on a legendary account of the martyrdom of St. Susanna for its information.
Pope Saint Marcellinus, according to the Liberian Catalogue, became bishop of Rome on June 30, 296; his predecessor was Pope St Caius. He is not mentioned in the Martyrologium hieronymianum, or in the Depositio episcoporum, or in the Depositio martyrus. St Marcellinus’ pontificate began at a time when Diocletian was Roman Emperor, but had not yet started to persecute the Christians. He left Christianity rather free and so the church’s membership grew.
Saint Babylas (died 253) was a patriarch of Antioch (237 - 253), who died in prison during the Decian persecution. He asked to be buried in his chains. In the Eastern Orthodox Church and Eastern Catholic Churches of the Byzantine rite his feast day is September 4, in the Roman Catholic, January 24.
Pope Demetrius of Alexandria was Patriarch of Alexandria (189–232). Sextus Julius Africanus, who visited Alexandria in the time of Demetrius, places his accession as eleventh bishop after Mark in the tenth year of Commodus; Eusebius of Caesarea's statement that it was in the tenth of Septimius Severus is a mistake. The Catholic Encyclopedia states, "Demetrius is the first Alexandrian bishop of whom anything is known.
Pope Heraclas of Alexandria served as the thirteenth Pope of Alexandria (head of the church that became the Coptic Orthodox Church and the Greek Church of Alexandria) between 232 and 248. He followed Origen as head of the Catechetical School of Alexandria. He has been attributed as the first Bishop of Alexandria to carry the appellation of "Pope".
Pope Dionysius of Alexandria, named "the Great," was the Pope of Alexandria from 248 until his death on November 17, 265 after seventeen years as a bishop. He was the first Pope to have the title "the Great" attached to his name (before a Bishop of Rome even). We have information on Dionysius because during his lifetime, Dionysius wrote many correspondence letters. Only one original letter survives to this day, the remaining letters are found re-written in the works of Eusebius.
Pope Maximus of Alexandria served as the 15th Pope of Alexandria (head of the church that became the Coptic Orthodox Church and the Greek Church of Alexandria) between 265 and 282. He is commemorated in the Coptic Synaxarion on the 14th day of Baramudah.