Gorgan in the context of "Caspian expeditions of the Rus'"

The various states and civilizations in Iran (Persia) have had numerous capital cities and royal centers throughout history.

• Ahar; Pishkinid dynasty
• Anshan; pre-Achaemenid era
• Ardabil; early Safavid era, Sajid
• Asaak; Parthian era royal center
• Astara; Ispahbads of Gilan
• Alamut Castle; Nizari Ismaili state
• Amol; Ziyarid, Alavid, Marashis, Dabuyid, Bavandid, Chalavi, (Parthian Empire climate capital)
• Babylon; Achaemenid era
• Baghdad; caliphates, Jalayerid, Buyid
• Balkh; in legend, the governmental center of the Kayanian dynasty
• Bardsir; Banu Ilyas
• Basra; Jalayerid
• Bukhara; Samanid era
• Ctesiphon; Parthian, Sasanian era
• Damavand; Masmughans of Damavand
• Dinavar; Hasanwayhids
• Diyarbakır; Aq Qoyunlu
• Fuman; Dabuyid
• Farim (Perim); Bavandid
• Firozkoh; Ghurid
• Firuzkuh; Chalavi
• Shahr-e Qumis (Hecatompylos); Parthian era
• Ghazna; Ghurid, Khwarazmid, Ghaznavid
• Gor (Firuzabad); Sasanian era
• Gorgan (Astarabad); Ziyarid, Alavids
• Herat; Ghurid, Kartids, Timurid Empire
• Hulwan; Annazids
• Ij (Ig); Shabankara
• Isfahan; Ziyarid dynasty, Kakuyid Emirate, Injuid dynasty, Seljuk era, Safavid era
• Istakhr; Sasanian era
• Izeh (Idaj); Hazaraspids
• Ecbatana (later Hamadan); Median Empire, Achaemenid era, Eldiguzids, Seljuks (Greater and Iraq Seljuks)
• Kerman; Muzaffarid, Qutlugh-Khanids
• Khorramabad; Khorshidi dynasty
• Kunya Urgench; early Khwarezmid era
• Lafur; Qarinvand dynasty
• Lankaran; Talysh Khanate
• Lahijan; Karkiya dynasty
• Maragheh; Ilkhanid, Ahmadilis, Sajid
• Mashhad; Afsharid
• Merv; capital during al-Mamun's caliphate, and Taherid era, Seljuk Empire
• Mosul; winter capital during Qara Qoyunlu
• Nakhchivan; Eldiguzids
• Nishapur; Ilkhanid, Seljuq, Taherid eras
• Nisa, Turkmenistan; periodical capital of the Parthian era
• Pasargadae; Achaemenid
• Persepolis; Achaemenid ceremonial capital
• Rey (Rhagae); Median, Ziyarid, Buyid, Seljuk Empire
• Rudbar; Justanids
• Qazvin; early Safavid era
• Sabzevar; Sarbadars
• Samarkand; Samanid, Khwarazmid, Timurid era
• Shiraz; Buyid dynasty, Injuid dynasty, Muzaffarid dynasty, Salghurid dynasty, Zand dynasty
• Soltaniyeh; Ilkhanid
• Susa; Achaemenid, Parthian era
• Tabriz; Ilkhanid, Khwarezmid, Rawadid, Chupanid, Jalayerid, Eldiguzids, Kara Koyunlu, Aq Qoyunlu, early Safavid era
• Tarom; Sallarid
• Sari; Qajar, Dabuyid, Alavid, Bavandid, Marashis
• Yazd; Kakuyid, Atabegs of Yazd
• Zaranj; Saffarid Empire, Mihrabanid, Nasrid
• Tehran; Qajar era, Pahlavi era, Islamic Republic of Iran 1796–present

Erigyius (in Greek Ἐριγυιoς; died 328 BC), a Mytilenaean, son of Larichus, was an officer in Alexander the Great's army. He had been driven into banishment by Philip II, king of Macedon, because of his faithful attachment to Alexander, and returned when the latter came to the throne in 336 BC. At the battle of Gaugamela, 331 BC, he commanded the cavalry of the allies, as he did also when Alexander set out in 330 BC from Ecbatana in pursuit of Darius III. In the same year Erigyius was entrusted with the command of one of the three divisions with which Alexander invaded Hyrcania. He was also among the generals sent against Satibarzanes, whom he slew in battle with his own hand. In 329 BC, together with Craterus and Hephaestion, and with the assistance of Aristander, a soothsayer, he endeavoured to dissuade Alexander from crossing the Jaxartes river against the Scythians. In 328 BC he fell in a battle against the Bactrian fugitives.

Golestan province is one of the 31 provinces of Iran, located in the northeast of the country and southeast of the Caspian Sea. Its capital is the city of Gorgan, formerly called Esterabad until 1937. Golestan was split off from Mazandaran Province in 1997.

Golestan Province borders Turkmenistan to the north. One of the key border points between the two countries is Incheh Borun, which serves as a vital crossing point.

Ziyadoghlu Qajar (Azerbaijani: Ziyadoğlu Qacar, زیاد اوغلو قاجار, lit. 'Qajars (who are) sons of Ziyad') or Ziyadlu (Persian: زیادلو) were a branch of the Qajar tribe that governed Safavid Karabakh from 1546–1554 to 1743 (sometimes, also including Safavid Kakheti), Astarabad in various times, Ganja Khanate from 1747 to 1805. Some authors suggested that, Qovanlu branch of Qajars who ruled Iran from 1789 to 1925, which is currently better known as Qajar dynasty was a cadet-branch of Ziyadoghlu family.

The Russo-Persian War of 1722–1723, known in Russian historiography as the Persian campaign of Peter the Great, was a war between the Russian Empire and Safavid Iran, triggered by the tsar's attempt to expand Russian influence in the Caspian and Caucasus regions and to prevent its rival, the Ottoman Empire, from territorial gains in the region at the expense of declining Safavid Iran.

The Russian victory ratified for Safavid Iran's cession of their territories in the North Caucasus, South Caucasus and contemporary northern Iran to Russia, comprising the cities of Derbent (southern Dagestan) and Baku and their nearby surrounding lands, as well as the provinces of Gilan, Shirvan, Mazandaran and Astarabad conform the Treaty of Saint Petersburg (1723).

Satibarzanes (Old Persian: *Šyātibr̥zaⁿs; Ancient Greek: Σατιβαρζάνης Satibarzánēs; died 330 BC), a Persian, was satrap of Aria under Darius III, king of Persia.

In 330 BC, Alexander the Great, marching through the borders of Aria on his way from Hyrcania against the Parthians, was met at a city named Susia by Satibarzanes, who made submission to him, and was rewarded for it by the restoration of his satrapy. In order to prevent the commission of any hostilities against the Arians by the Macedonian troops which were following from the west, Alexander left behind with Satibarzanes forty horse-dartmen, under the command of Anaxippus. These, however, together with their commander, were soon after murdered by the satrap, who incited the Arians to rebel, and gathered his forces together at the city of Artacoana.