Hirta, Mesopotamia Eastern Catholic : Hirta, Mesopotamia Hirta was an Ancient city and bishopric in Mesopotamia which only remains as a Latin Catholic titular see. Hirta, now completely ruined, lied near modern Iraq's city of Najaf. It is documented as diocese of the Oriental Assyrian Church between 410 and 1012, directly dependent on its Catholicos-Patriarch of Seleucia-Ctesifonte. A dozen of its Eparch (bishops) are attested, including : The diocese was nominally restored in July 2004.07 as Latin Titular See of Hirta (Latin - Curiate Italian) / Hirten(sis) (Latin adjective). It has had the following incumbents, so far of the fitting Episcopal (lowest)
Mesopotamia (theme) Mesopotamia (theme) Mesopotamia () was the name of a Byzantine theme (a military-civilian province) located in what is today eastern Turkey. It should not be confused with the region of Mesopotamia or with the older Roman and early Byzantine province of Mesopotamia. The Byzantine theme was located between the rivers Arsanias (modern Murat) and Çimisgezek. The theme was formed probably between 899 and 911, when Emperor Leo VI the Wise (r. 886–912) appointed the former "strategos" of the Charsianon, named Orestes, as its governor. Most of the province was formed out the Armenian principality of Takis, ruled by the chieftain