Gregory I may refer to:
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Gregory the Illuminator
Gregory the Illuminator ( Classical hy, Գրիգոր Լուսաւորիչ, reformed: Գրիգոր Լուսավորիչ, ''Grigor Lusavorich'';, ''Gregorios Phoster'' or , ''Gregorios Photistes''; la, Gregorius Armeniae Illuminator, cu, Svyas ...
(250s–330s), Catholicos of the Armenian Apostolic Church in 288–325
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Gregory of Nazianzus
Gregory of Nazianzus ( el, Γρηγόριος ὁ Ναζιανζηνός, ''Grēgorios ho Nazianzēnos''; ''Liturgy of the Hours'' Volume I, Proper of Saints, 2 January. – 25 January 390,), also known as Gregory the Theologian or Gregory N ...
(329–390), Patriarch Gregory I of Constantinople, in office 379–381
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Pope Gregory I
Pope Gregory I ( la, Gregorius I; – 12 March 604), commonly known as Saint Gregory the Great, was the bishop of Rome from 3 September 590 to his death. He is known for instigating the first recorded large-scale mission from Rome, the Gregori ...
(540–604), in office 590–604
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Gregory I of Naples
Gregory I (died 755) was the Duke of Naples from 740. He also bore the title hypatus.
Sources
755 deaths
8th-century dukes of Naples
Year of birth unknown
{{duke-stub ...
(died 755), r. 740–755
* Gregory I,
Patriarch of Bulgaria
The Patriarch of All Bulgaria is the patriarch of the Bulgarian Orthodox Church. The patriarch is officially styled as ''Patriarch of All Bulgaria and Metropolitan of Sofia''. Patriarch Neophyte acceded to this position on 24 February 2013.
Hist ...
c. 940 – c. 944
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Gregory I, Count of Tusculum Gregory I was the Count of Tusculum sometime between 954 and 1012. Consul et dux 961, vir illustrissimus 980, praefectus navalis 999. He was the son of Alberic II (son of Alberic I of Spoleto and Marozia), and Alda of Vienne (daughter of Hugh, Kin ...
, r. in 954–1012
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Patriarch Gregory I of Alexandria Gregory I served as Greek Patriarch of Alexandria between 1243 and 1263.
References
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13th-century Patriarchs of Alexandria
{{EasternOrthodoxy-bishop-stub ...
, Greek Orthodox patriarch, in office 1354–1366
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Maputeoa
Te Maputeoa (baptized Gregorio Stanislas; reigned as Gregorio I; born c. 1814 – 20 June 1857) was a monarch of the Polynesian island of Mangareva and the other Gambier Islands. He was the King or '' ʻAkariki'' (paramount chief), as well as ...
(1814–1857), Gregorio I Maputeoa, King of Mangareva, r. c. 1830–1857
{{hndis, Gregory 01