Nicomedia (/ˌnɪkəˈmiːdiə/; Greek: Νικομήδεια, Nikomedeia; modern İzmit) was an ancient Greek city located in what is now Turkey. In 286, Nicomedia became...

Adrian of Nicomedia (also known as Hadrian) or Saint Adrian (Greek: Ἁδριανὸς Νικομηδείας, romanized: Adrianos Nikomēdeias, died 4 March 306) was a Herculian...

Eusebius of Nicomedia (/juːˈsiːbiəs/; Greek: Εὐσέβιος; died 341) was an Arian priest who baptized Constantine the Great on his deathbed in 337. A fifth-century...

The Metropolis of Nicomedia (Greek: Μητρόπολις Νικομηδείας) was an ecclesiastical territory (metropolis) of the Ecumenical Patriarchate of Constantinople...

rejected his overtures and laid siege to Nicomedia (modern İzmit). In 1337, Andronikos effectively abandoned Nicomedia as he led his army to Albania. The besieged...

Anthimus of Nicomedia (Greek: Ἄνθιμος Νικομηδείας; martyred 303 or 311–12), was the bishop of Nicomedia in Bithynia, where he was beheaded during a persecution...

Juliana of Nicomedia (Greek: Ίουλιανή Νικομηδείας) is an Anatolian Christian saint, said to have suffered martyrdom during the Diocletianic persecution...

St. Eleutherius of Nicomedia (died 303) was a soldier who was martyred under Diocletian. He was accused of trying to burn the palace of Diocletian. He...

Cecropius of Nicomedia was a bishop of Nicomedia and a key player in the Arian controversy. Cecropius, a semi-Arian, had been Bishop of Laodicea, and...

Arrian of Nicomedia (/ˈæriən/; Greek: Ἀρριανός Arrianos; Latin: Lucius Flavius Arrianus; c. 86/89 – c. after 146/160 AD) was a Greek historian, public...

The 20,000 Martyrs of Nicomedia refers to victims of persecution of Christians in Nicomedia, Bithynia (modern Izmit, Turkey) by the Roman emperors Diocletian...

Bithynia was an independent kingdom from the 4th century BC. Its capital Nicomedia was rebuilt on the site of ancient Astacus in 264 BC by Nicomedes I of...

Christianity as one of the Holy Unmercenary Healers, was a martyr of Nicomedia in Bithynia during the Diocletianic Persecution of 305 AD. Though there...

within the municipality of the metropolitan center. İzmit was known as Nicomedia (Greek: Νικομήδεια) and Ólbia (Greek: Ὀλβία) in antiquity, and was the...

kolpos) and Gulf of Nicomedia. It took the names Gulf of Astacus and Sinus Astacenus from the city Astacus. Astacus in Bithynia Nicomedia (modern İzmit) –...

Menodotus of Nicomedia (Greek: Μηνόδοτος ὁ Νικομηδεύς; 2nd century CE), in Bithynia, was a physician; a pupil of Antiochus of Laodicea; and tutor to Herodotus...

in 312, finally becoming a Christian and being baptised by Eusebius of Nicomedia, an Arian bishop, although the Catholic Church and the Coptic Orthodox...

Arius presented to Alexander of Alexandria, His letter to Eusebius of Nicomedia, and The confession he submitted to the emperor." "The Thalia is Arius'...

Nicetas was a twelfth-century Archbishop of Nicomedia. He is noted for having said that the Church of Rome "has separated herself from us by her own deeds...

April 1833 – November 18, 1917) was a Greek Orthodox metropolitan of Nicomedia, and the discoverer in 1873 of an important manuscript with copies of...

century, Nicomedia (modern İzmit) near Istanbul was the Eastern (and most senior) capital of the Roman Empire (Diocletian had his seat in Nicomedia as the...

martyred in AD 304 alongside Peter Cubicularius and a certain Dorotheus at Nicomedia during the Diocletianic Persecution. According to Lactantius and Eusebius...

who in 304, during the Diocletianic Persecution, suffered martyrdom at Nicomedia (modern-day İzmit, Turkey) on September 26. According to Roman Catholic...

Great, who was himself later baptized by the Arian bishop Eusebius of Nicomedia in 337 AD, convened another gathering of church leaders at the regional...

and harassing Prusa. The Turkish raids also threatened the port city of Nicomedia with famine, as Turkish warrior bands roamed the countryside and prohibited...

After defeating Licinius (the senior co-emperor (augustus) of the East in Nicomedia) at the Battle of Chrysopolis (Üsküdar) in 324 (thus bringing an end to...

Justinian II was in Nicaea at the time and urged the pontiff to meet him in Nicomedia. The Liber pontificalis recounts a bizarre scene of the crowned emperor...

Eusebius discusses the martyrdoms at Nicomedia, naming two: Gorgonius of Nicomedia, 304 Anthimus of Nicomedia, 304 Shmona and Gurya, c. 297, as recorded...

St. Theopemptus was the Bishop of Nicomedia and a Hieromartyr, under the rule of Diocletian. He is known for being one of the first victims of Diocletian's...

namely Saints Catherine of Alexandria, Margaret of Antioch, Barbara of Nicomedia and Dorothea of Caesarea, is called "the four capital virgins", three...