List of Famous people named Gregory

Gregorios Kamonas was the Greek-Albanian Lord or Prince of Krujë (Arbanon) in ca. 1215. Demetrios Chomatenos (1216–1236) mentioned him as having the title of sebastos, given to him by the emperor Alexios III Angelos after 1205, during his stay in the Despotate of Epirus at the court of his nephew Michael I Komnenos Doukas. He first married the daughter of Gjin Progoni, then married Serbian princess Komnena Nemanjić, the daughter of King Stefan Nemanjić and widow of Dimitri Progoni, thus inheriting the rule of Arbanon. He strengthened ties with Serbia and secured Arbanon through an Orthodox alliance. He had a daughter together with Komnena, who married Golem of Kruja the later lord of Kruje.

Pope Gregory III was the bishop of Rome from 11 February 731 to his death. His pontificate, like that of his predecessor, was disturbed by Byzantine iconoclasm and the advance of the Lombards, in which he invoked the intervention of Charles Martel, although ultimately in vain. He was the last pope to seek the consent of the Byzantine exarch of Ravenna for his election, and the last non-European Pope until the election of Pope Francis on March 13, 2013.

Gregory Chioniades was a Byzantine Greek astronomer. He traveled to Persia, where he learned Persian mathematical and astronomical science, which he introduced into Byzantium upon his return from Persia and founded an astronomical academy at Trebizond. Choniades also served as Orthodox bishop in Tabriz.

Gregory Penske is the chairman/CEO of Penske Motor Group, which owns and operates Toyota, Lexus and Mercedes-Benz dealerships in California and a Toyota dealership in Texas. His father is race car team owner and entrepreneur Roger Penske.