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.
Hormuzan
Hormuzan managed to survive, and along with Nakhiragan, Mihran Razi and Piruz Khosrow, including the rest of the survivors, regrouped at Bavel (Babylon), where they tried to repel the Arab army, but were once again defeated. Hormuzan then fled to Hormizd-Ardashir in Khuzestan, which he used as his base in his raids in Meshan against the Arabs. Yazdegerd III supported him in these raids, and believed that it was possible to regain the territories which had been taken by the Arabs. Hormuzan, along with the rest of the survivors of al-Qadisiyyah, later regrouped again and fought the Arabs at the battle of Jalula in 637. The Sasanian army was once again defeated and Mihran Razi was killed. Hormuzan then withdrew once again to Hormizd-Ardashir, where he chose to stay in case the Arabs should invade his domains.