651 disestablishments

last pre-Islamic Iranian empire (224–651 AD)

Margiana ( Margianḗ, Old Persian: Marguš, Middle Persian: Marv) is a historical region centred on the oasis of Merv and was a minor satrapy within the Achaemenid satrapy of Bactria, and a province within its successors, the Seleucid, Parthian and Sasanian empires.

Province of the Sasanian Empire

Abarshahr (Persian: اَبَرشهر) or Nishapur (Persian: نیشاپور) was a Sasanian satrapy (province) in Late Antiquity, that lay within the kust of Khorasan. The province bordered Media in the west, Hyrcania in the north west, Margiana in the north east, and Harev in the south east. The governor of Abarshahr is attested to have held the unique title of kanarang, distinguished from the title of marzban given to governors of frontier provinces. Abarshahr came to be known as one of the nicknames of the city of Nishapur which was considered to be the capital city of the province of Abarshahr during the

Adurbadagan (Middle Persian: Ādurbādagān/Āδarbāyagān, Parthian: Āturpātākān) was a northwestern province in the Sasanian Empire, mostly overlapping the present-day Azerbaijan region in Iran. Governed by a marzban ("margrave"), it functioned as an important frontier (and later religious) region against the neighbouring country of Armenia. It is also the root word of the modern Iranian "Azerbaijan" region as well as the country of Azerbaijan.

former Sasanian province in Late Antiquity

thumb|Map of the eastern part of Transcaucasia under the [[Sasanian Empire]] Balāsagān (an Iranian toponym meaning "country of Balas"; Armenian: Bałasakan, the inhabitants known as Bałasičkʻ, Arabic: Balāsajān/Balāšajān), also known as Bazgan, was a region located in the area of the Kura and Aras rivers, adjacent to the Caspian Sea. To the south, it bordered Atropatene/Adurbadagan and Gilan. It roughly corresponded to the Armenian province of Paytakaran, albeit extending farther into the north. It has been suggested that under the Sasanians the region extended as far as the stronghold of Derbe

Ardashir-Khwarrah (Middle Persian: Arđaxšēr-Xwarra, meaning "glory of Ardashir") was one of the four (later five) administrative divisions of the Sasanian province of Pars. The other administrative divisions were Shapur-Khwarrah, Istakhr and Darabgerd, while a fifth named Arrajan was founded in the early 6th century by Kavadh I (r. 498–531).