In 1804, after Eliyya Isho-Yab's death, Yohannan Hormizd remained the only patriarch of Alqosh. There were thus two patriarchates in communion with Rome, the larger one in Alqosh, and in Amid that ruled by [[Augustine Hindi|Augustine (Yousef V) Hindi]]. Rome did not want to choose between the two candidates and granted neither the title of Patriarch, even if from 1811 it was Augustine Hindi who ruled the Church. After Hindi's death, on the July 5, 1830, Yohannan Hormizd was formally confirmed Patriarch by [[Pope Pius VIII]] with the title of "Patriarch of Babylon of the Chaldeans."<ref name="angold">{{cite book|last=O’Mahony |first=Anthony |editor=Angold, Michael |title=Eastern Christianity |series=Cambridge History of Christianity|volume=5|year=2006|publisher=[[Cambridge University Press]] |isbn=978-0-521-81113-2 |chapter=Syriac Christianity in the modern Middle East}}</ref>{{rp|528}} The merger of the patriarchates of Alqosh and Amid was completed.
On the other hand, the Shimun line of patriarchs, based in [[Qochanis]], remained in the Chaldean church, independent of the new Chaldean Church. The Patriarchate of the present-day [[Assyrian Church of the East]], with its See in Chicago, forms the continuation of that line.<ref name="Murre">{{cite web|url=http://syrcom.cua.edu/Hugoye/Vol2No2/HV2N2Murre.html |title=The Patriarchs of the Church of the East from the Fifteenth to Eighteenth Centuries |publisher=Hugoye: Journal of Syriac Studies |accessdate=2009-02-04 |author=Heleen H.L. Murre}}</ref>
===19th century: expansion and disaster===