(in Yāḳūt, Buldān , ed. Beirut, iv, 16, Ṭabarstarān), a district of the eastern Caucasus, essentially the basin of the Rūbās river which runs into the Caspian Sea just south of Darband [see derbend ], the early Islamic Bāb al-Abwāb [q.v.]. It now comes within the southernmost part of Dāg̲h̲istān (see map in ḳabḳ , at IV, 344). Its population comprises Caucasian mountaineers plus a considerable admixture of Iranian speakers of Tātī dialect [see tāt ].
At the time of the Umayyad prince Marwān b. Muḥammad’s raids through the Caucasus, there was a Ṭabarsarān S̲h̲āh (known a…