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 II
When Hormizd's father Narseh ascended the throne in 293, he had an investiture relief made in Naqsh-e Rustam, where he is depicted as receiving the ring of kingship from a female figure that is frequently assumed to be the goddess Anahita. However, some scholars have suggested that this may be his queen and Hormizd's mother, Shapurdukhtak. The figure standing behind Narseh is most likely Hormizd, due to his cap being the form of that of an animal protome, which was typically worn by Sasanian heirs. Hormizd most likely did not take part in his father's war against the Roman Empire, which ended diastrously for the Sasanians, with Narseh's wife and some of his offsprings being captured, which forced him to surrender a handful provinces in Armenia and Mesopotamia in order to have his family members handed back to him.