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, the Martyr
Hormizd lived in a time where the Persian kings systematically persecuted Christians . According to Theodoret, it was not easy to express in words how the Christians were put to death. Nevertheless, these cruelties did not discourage the Christians from retaining their faith. Hormizd grew up in such a context in which he inculcated a spirit of martyrdom. According to Christelle Jullien, some martyrdoms during the reign of Bahram V, are known from literary traditions, "like that of Hormozd, Šahin, Persian notables, and Benjamin the deacon, whose story was reported by Theodoret (Eccl. Hist. V.39, 12-24; cf. Michael the Syrian, Chronicle VIII, 4, 15; 17) also preserved in an Armenian document (BHO 7; Peeters, 1909, pp. 399-415."