There were three main concentrations of
East Syriac villages in the region: in the Sapna valley to the west of , in the Tigris plain around Dohuk, and in the Shemkan district, around the valley of the Gomel river. Before the fourteenth century the Sapna valley was part of the diocese of Dasen and Beth Ture ('the mountains'), which lay to the north of Marga and also covered the Berwari region and the Zibar and Lower Tiyari districts. The villages in the Dohuk district were included in the
East Syriac diocese of Beth Nuhadra, whose bishops resided in the small town of Tel Hesh near Alqosh, and those in the Gomel valley in the diocese of Marga, centred on the region. The last-known bishops of Beth Nuhadra and Dasen, and Mattai, were present at the consecrations of
Makkikha II in 1257 and
Yahballaha III in 1281 respectively, and it is unclear when either diocese came to an end. No bishops of the region are known from the fourteenth and fifteenth centuries. After the schism of 1552 the region remained loyal to the Nestorian patriarch , and his opponent
Yohannan Sulaqa, the first Chaldean patriarch, was martyred in 1554 after an attempt to win over 's East Syriac community. Thereafter the region seems to have been claimed by both patriarchates for some decades. A metropolitan of 'Koma', probably the Sapna village of Komane with its recently revived monastery of Mar of Kom, was among the signatories of a letter of 1580 from to
pope Gregory XIII, and the Dasen district was claimed by the
Qochanes patriarch XI in 1653. On the other hand, a bishop Abraham of Beth Ture ('the mountains') is mentioned among the hierarchy of
Eliya VII (1591-1617) in the report of 1610. Given its proximity to
Alqosh, it would be surprising to find the region under the influence of the Qudshanis patriarchs, and the surviving manuscripts copied for the Dohuk, Sapna and Shemkan villages (some originating from
Gazarta but the majority from Alqosh) invariably mention patriarchs of the Eliya line. By the end of the eighteenth century the
Mosul patriarchate had a diocese of for the region. Patriarch
Eliya XII (1778-1804) consecrated his nephew metropolitan of in September 1784 after his withdrawal to , with the intention of preserving the patriarchal succession within his family. made a Catholic profession of faith in 1795, but was felt by the
Latin missionaries to be insincere. In 1801 the
Vatican informed them that he could not be received as a bishop in the
Catholic Church without 'manifest signs of penitence'. Shortly afterwards in the same year openly defied the Vatican, consecrating the priest Peter Shawriz metropolitan of
Seert. seems to have become reconciled with
Yohannan Hormizd after the death of
Eliya XII in 1804, as in 1808 he was living in his household in Alqosh. He was 'senior to Yohannan, and governed the diocese of , but all the same could do nothing without the approval of the metropolitan Yohannan'. Although he sympathised with Gabriel Dambo's monastic order, his dependence on Yohannan Hormizd occasionally forced him to act against his better judgement. In 1808 he asserted himself by delivering the monastery of
Rabban Hormizd to Gabriel Dambo in defiance of Yohannan Hormizd's wishes. In 1811, however, on Yohannan Hormizd's instructions, he 'became a Nestorian at ' and expelled Dambo and his monks from the monastery with the assistance of the civil authorities. In 1813 he fell mortally ill, and made amends for his harsh treatment of the monks on his deathbed by returning the keys of the monastery to them. He died shortly afterwards and was buried in the monastery of Rabban Hormizd, 'among the tombs of the patriarchs of the Nestorians'. == Chaldean bishops of Amadiya ==