Elias signed the canons of the Quinisext Council. During the period of Arab domination roughly lasting from 640-938, Tadım declined to a small town, leaving Arsamosata the lone major city in the plains region. The reason may have been proximity to danger, with the Arab-Byzantine frontier now lying west of Tadım. Some of its population likely relocated to the Arsamosata area. Sometime after 956, Tadım sank into total obscurity, although its name survives to the present day. As of 1900, remains at Tadım include two traces of circuit walls: one enclosing a tepe 60 feet high, possibly representing the medieval site, and the other 1 mile west on the plain, possibly representing the ancient site. Some 8 km south of Tadım is Hoh, which as of the 19th century was one of the principal villages on the plain. As of 1900, foundations of an apparently "Roman" or "Byzantine" building were identified atop a tepe 80 feet high and 200 feet in diameter; the tepe was apparently unfortified. Hoh is probably the place called Hūrī in the al-Mutanabbi account. (This was first proposed by Canard and accepted by Howard-Johnston "for want of convincing alternatives - but with considerable hesitation".) Although it is listed as a balad or city in the text, it was probably obscure in both classical and medieval times and was probably just a particularly large village, probably unfortified according to Howard-Johnston. On the other hand, Sinclair identifies the site of Aşağı Huh with the fort called "Chachon" that Basil I attacked in 873. In any case, it was probably fortified earlier in its history, since the Armenian Geography attributed to Moses of Choron in the 6th or 7th century lists a castle called Horē as one of two places in Anzitene canton. Arsamosata in the northeast was a major city with a mixed Armenian and Assyrian population. It was located at the present-day site of Haraba. The Syriac Orthodox bishop of Anzitene resided at Arsamosata. Tadım's decline under Arab rule left Arsamosata as the lone major city in the plains region. Arsamosata likely received an influx of new residents from both Tadım and the Malatya plain. Around the 11th and 12th centuries, however, Arsamosata went into decline, contracting from "a sprawling ancient city" into a smaller city contained within the walls. It remained a city until at least the end of the 12th century - the Syrian Orthodox