Chaldean Catholic Archeparchy of Kirkuk-Sulaimaniya
The foundation of the Chaldean Catholic diocese of Kirkuk has been attributed to Yohannan VIII Hormizd, who was recognised by the Vatican as patriarchal administrator of the patriarch of Babylon in 1780 and, after five decades of disputes and confrontations, as patriarch in 1830. According to the Chaldean Catholic priest Joseph Tfinkdji, Yohannan Hormizd visited the town of Kirkuk in 1789 while travelling from Mosul to Baghdad, and converted its Church of the East community to Catholicism. He is said to have consecrated a Chaldean metropolitan for Kirkuk, Mar Abraham, who resided in Aïnqawa during his reign, and died between 1821 and 1824. The source for this assertion is not clear. Abraham is not mentioned by any other source, and as Yohannan Hormizd himself (then considered by the Vatican to be merely metropolitan of Mosul) is styled 'metropolitan of Kirkuk' in a colophon of 1798, the Kirkuk region would seem to have been part of the diocese of Mosul at this period.
Hormizd of Sakastan
Hormizd of Sakastan was a Sasanian prince who was the leader of a revolt in Sakastan and its surrounding regions. He was the son of Shapur Mishanshah, a Sasanian prince who governed Maishan, and was the son of the Sassanian shah Shapur I. Hormizd's mother was a certain queen named Denag. Hormizd had many other siblings named Hormizdag, Odabakht, Bahram, Shapur, Peroz, and Shapurdukhtak. In 260, his father died and was probably succeeded by Denag as the governor of Maishan. In 271, he was appointed as the governor of Sakastan and its surrounding regions. Three years later, when his cousin Bahram II ascended the throne, Hormizd's sister Shapurdukhtak married the latter. In ca. 281, Hormizd revolted against Bahram II, and was supported by the inhabitants of Eastern Iran, including the inhabitants of Gilan. Hormizd's revolt was finally suppressed in 283, and he was shortly executed under the orders of Bahram II, who appointed his own son Bahram III as the governor of Sakastan.