Antipope Felix, an archdeacon of Rome, was installed as Pope in 355 AD after the Emperor Constantius II banished the reigning Pope, Liberius, for refusing to subscribe to a sentence of condemnation against Saint Athanasius.
Pope Alexander I was the bishop of Rome from c. 107 to his death c. 115. The Holy See's Annuario Pontificio (2012) identifies him as a Roman who reigned from 108 or 109 to 116 or 119. Some believe he suffered martyrdom under the Roman emperor Trajan or Hadrian.
Pius I was the bishop of Rome from c. 140 to his death c. 154, according to the Annuario Pontificio. His dates are listed as 142 or 146 to 157 or 161, respectively. He is considered to have opposed both the Valentinians and Gnostics during his papacy. He is considered a saint by the Catholic Church and the Eastern Orthodox Church with a feast day in 11 July, but it is unclear if he died as a martyr.
Pope Stephen I was the Bishop of Rome from 12 May 254 to his death on 2 August 257. He was later canonized as a saint and some accounts say he was martyred while celebrating Mass.
Pope Felix I was the bishop of Rome from 5 January 269 to his death on 30 December 274.
Pope Soter was the bishop of Rome from c. 167 to his death in c. 174. According to the Annuario Pontificio, the dates may have ranged from 162–168 to 170–177. He was born in Fondi, Campania, today Lazio region, Italy. Soter is known for declaring that marriage was valid only as a sacrament blessed by a priest and also for formally inaugurating Easter as an annual festival in Rome. His name, from Greek Σωτήριος from σωτήρ "saviour", would be his baptismal name, as his lifetime predates the tradition of adopting papal names.
Pope Lucius I was the bishop of Rome from 25 June 253 to his death on 5 March 254. He was banished soon after his consecration, but gained permission to return. He was mistakenly classified as a martyr in the persecution by Emperor Valerian, which did not begin until after Lucius' death.
Pope Anacletus, also known as Cletus, was the bishop of Rome, following Peter, and Linus. Anacletus served between c. AD 79 and his death, c. AD 92. Cletus was a Roman who, during his tenure as pope, ordained a number of priests and is traditionally credited with setting up about twenty-five parishes in Rome. Although the precise dates of his pontificate are uncertain, he "...died a martyr, perhaps about 91". Cletus is mentioned in the Roman Canon of the mass; his feast day is April 26.
Pope Zephyrinus was the bishop of Rome from 199 to his death on 20 December 217. He was born in Rome, and succeeded Victor I. Upon his death on 20 December 217, he was succeeded by his principal advisor, Callixtus I. He is known for combating heresies and defending the divinity of Christ.
Pope Marcellinus was the bishop of Rome from 30 June 296 to his death in 304. A historical accusation was levelled at him by some sources to the effect that he might have renounced Christianity during Emperor Diocletian's persecution of Christians before repenting afterwards, which would explain why he is omitted from lists of martyrs. The accusation is rejected, among others, by Augustine of Hippo. He is today venerated as a saint in the Catholic Church and in the Serbian Orthodox Church.
Abdon and Sennen, variously written in early calendars and martyrologies Abdo, Abdus, and Sennes, Sennis, Zennen, are recognized by the Catholic Church and Eastern Orthodox Church as Christian martyrs, with a feast day on 30 July. In some places they have been honoured on 20 March, and the first Sunday of May.
Cyriacus, sometimes Anglicized as Cyriac, according to Christian tradition, is a Christian martyr who was killed in the Diocletianic Persecution. He is one of twenty-seven saints, most of them martyrs, who bear this name, of whom only seven are honoured by a specific mention of their names in the Roman Martyrology.
Saints Simplicius, Faustinus and Beatrix were siblings martyred in Rome during the Diocletian persecution.
Nabor and Felix were Christian martyrs thought to have been killed during the Great Persecution under the Roman emperor Diocletian. A tomb in Milan is believed to contain their relics.
Martinian and Processus were Christian martyrs of ancient Rome. Neither the years they lived nor the circumstances of their deaths are known. They are currently buried in St. Peter's Basilica in Rome.
Susanna of Rome was a Christian martyr of the Diocletianic Persecution. Her existing hagiography, written between about 450 and 500 AD, is of no historical value and the relations it attributes to Susanna are entirely fictitious. It is probable that a real martyr named Susanna lies behind the literary invention.
Felicitas of Rome, also anglicized as Felicity, is a saint numbered among the Christian martyrs. Apart from her name, the only thing known for certain about this martyr is that she was buried in the Cemetery of Maximus, on the Via Salaria on a 23 November. However, a legend presents her as the mother of the seven martyrs whose feast is celebrated on 10 July. The Eastern Orthodox Church celebrates their martyrdom on 25 January.
Basilides, Cyrinus, Nabor and Nazarius are saints of the Catholic Church, mentioned in the Martyrology of Bede and earlier editions of the Roman Martyrology for 12 June as four Roman martyrs who suffered death under Diocletian.
Marcellus and Apuleius were third- or fourth-century martyrs who were inserted in the General Roman Calendar in the 13th century. They were recognized as saints by the Catholic Church, with 7 October as their feast day. Apuleius is considered purely legendary, and is no longer recognized.
1969 edition of the General Roman Calendar was promulgated on 1 January 1970 by Paul VI's Mysterii Paschalis. It is the current version of the General Roman Calendar.
