Scientific disputes over the administrative affiliation of the capital of the present-day Nakhchivan Autonomous Republic (Azerbaijan). Naxcivan, Arabic.  / Nashava/, arm.  / Nakhichevan/, etc. - arm.  / Nakhchavan/) in the era of Arab power in Azerbaijan, Greater Armenia, and the South Caucasus (the second half of the seventh and first quarter of the tenth centuries), they do not stop. In this regard, we set out to once again analyze all the information available to the Orientalist-historian from Arab-Muslim written monuments regarding this city, located on the left bank of the Araks River, at the foot of the Biblical Mount Ararat. Key words: Nakhichevan, Armenia, Arabs, Caucasian Albania. These scientific disputes began in the 1960s, when the well-known Soviet orientalist Z. A. Korotkov began to discuss the subject. Buniyatov for the first time in his monograph "Azerbaijan in the VII-IX centuries" began to include this city in the Arab province of Azerbaijan (Arab. Azarbaijan), less often-in the Ar (r)ana (Albania) [Buniyatov, 1965, p. 143-144] 1. Meanwhile, Russian historical science has long established the fact that Caucasian Albania, which mainly occupied the territory of the modern Republic of Azerbaijan, together with the Armenian and Kartli (East Georgian) possessions of the Arab Caliphate, formed a single province called "Armenia" (Arab. Arminius) (see: [Essays..., 1958, pp. 486, 534]). We have once again seen this in our research. Moreover, we were able to find out that this province was finally formed in 701 [Shahinyan, 2003, p. 89-106], and administratively it was divided into three units-Arminiya I (Arminiya-Armenia), Arminiya II (Arran-Albania) and Arminiya III (Jurzan-Kartli) [Shahinyan, 2008 (2), pp. 68-85; Shahinyan, 2010, pp. 319-328]. As for the Arab province of Azarbaijan, it occupied the territory south of the Araks River, the territory of the historical Iranian-speaking country of Atropatena (in the north-west of the Iranian Highlands), which b ... Read more