Hyrcania (; Hyrkanía,Woodhouse (1910), p. 1013 Old Persian: 𐎺𐎼𐎣𐎠𐎴 Varkâna,Lendering (1996) Middle Persian: 𐭢𐭥𐭫𐭢𐭠𐭭 Gurgān, Akkadian: Urqananu) is the historical region of the Hyrcani people composed of the land south-east of the Caspian Sea in modern-day Iran and Turkmenistan, bound in the south by the Alborz mountain range and the Kopet Dag in the east.Sherwin-White & Kuhrt (1993), p. 81

The region served as a satrapy (province) of the Median Empire, a sub-province of the Achaemenid Empire, and a province within its successors, the Seleucid, Arsacid and Sasanian empires. Hyrcania bordered Parthia to the east (later known as Abarshahr), Dihistan to the north, Media to the south and Mardia to the west.

Etymology Hyrcania () is the Greek name for the region, a borrowing from the Old Persian Verkâna as recorded in Darius the Great's Behistun Inscription (522 BC), as well as in other Old Persian cuneiform inscriptions. Verkā means "wolf" in Old Iranian, cf. Avestan vəhrkō, Gilaki and Mazandarani verk/verg, Modern Persian gorg, and Sanskrit vŗka (). Consequently, Hyrcania means "Wolf-land". The name was extended to the Caspian Sea and underlies the name of the city Zadracarta, the then-largest city and the capital of ancient Hyrcania.

Another archaic name, Dahistān (not to be confused with dehestan – a modern Iranian word for "district" or "county") is sometimes used interchangeably with Hyrcania. Dahistān refers, strictly speaking to the "place of the Dahae": an extinct people who lived immediately north of Hyrcania, as early as the 5th century BC.François de Blois & Willem Vogelsang, 2011, "Dahae", Encyclopedia Iranica (23 May 2015).

History Pre-Hellenistic Period Hyrcania formed part of the Median Empire by 600 BC, and according to Nicolaus Damascenus, was administered as a satrapy by the time of the last Median king, Astyages, who appointed a certain Artasyras as satrap (governor).Jacobs (2006) Upon the fall of the Median Empire, the region willingly submitted to the Achaemenid Empire and was occupied by Cyrus the Great in 549-548 BC,Dandamayev (1993), pp. 516-521 and for a time Artasyras continued as satrap under Cyrus,Dandamayev (1986), p. 652 prior to his replacement by Astyages himself. According to Ctesias, Astyages' grandson Megabernes also served as satrap of Hyrcania. Hyrcanians gave their name to the Hyrcanian plain in the middle Hermus valley in Lydia where they were settled, most likely during the reign of Cyrus the Great, as part of a policy to establish military colonies in Asia Minor.Ramsay (1890), p. 124 Under the Achaemenid Empire, Hyrcania served as a sub-province of the satrapy of Parthia, which was also known as the satrapy of Parthia and Hyrcania. At times, Cadusia may have been administered as part of Hyrcania.Schmitt (1990), p. 612 Fortifications to protect Hyrcania against nomadic incursions were constructed during the Achaemenid period.Lendering (2005)

Following Darius the Great's victory over the Magian usurper, Gaumata, in September 522 BC, revolts spread throughout the empire.Rawlinson (1867) In December 522 BC, a revolt in support of the Median leader Phraortes erupted in Hyrcania, and in March 521 BC, the Hyrcanian rebels unsuccessfully attacked Hystaspes, satrap of Parthia.Lendering (2000) In May, Phraortes was defeated and Hyrcania returned to Achaemenid rule. Darius later settled Hyrcanians in the settlement of Dareionkome () in the Hyrcanian Plain in Lydia. Other Hyrcanian settlements in the Hermus valley include Ormoita and Tyanolla.Ramsay (1890), p. 125 According to Herodotus, Hyrcanian soldiers participated in the Second Persian invasion of Greece in 480 BC under the command of Megapanus.Bivar (2002), pp. 151-153 After the war, a garrison composed of Hyrcanian soldiers was posted in the valleys of the rivers Hermus and Caicus. Under Xerxes I, Hyrcania was likely detached from the satrapy of Parthia and administered separately.Frye (1983), p. 112 Some sources imply Hyrcania was later administered as a sub-province of Media. According to Ctesias, Artaxerxes I appointed his illegitimate son Ochus as satrap of Hyrcania in c. 425 BC,Brunner (2004) who later assumed the throne as Darius II and appointed Idernes as satrap. Idernes' son Terituchmes succeeded him as satrap of Hyrcania following his death and was married to Amestris, daughter of Darius II, but Terituchmes was murdered by Udiastes, a henchman of Terituchmes, for conspiring to murder Amestris and revolt against Darius so he could wed his half-sister Roxana.

By the time of Alexander the Great's invasion of the Achaemenid Empire in 334 BC, Hyrcania was reattached to the satrapy of Parthia and administered as a sub-province. Hyrcanian soldiers are mentioned in the Battle of Gaugamela against Alexander in 331 BC. After the death of Darius III in 330 BC, many Persian noblemen fled to Hyrcania. Alexander reached Hyrcania in 330 BC, where he accepted the surrender of Phrataphernes, satrap of Hyrcania and Parthia, and chiliarch Nabarzanes. Alexander seized Zadracarta, the capital of Hyrcania, hereafter known as Syrinx, later that year and received the surrender of other satraps and nobles.Walbank (2015) Whilst in Hyrcania, Alexander appointed his general Amminapes as satrap of Hyrcania and Parthia,Lendering (2004) but was succeeded as satrap of Hyrcania by Autophradates, satrap of Mardia and Tapuria, not long after.Dandamayev (1987), p. 29 In 328 BC, Autophradates rebelled against Alexander and Phrataphernes, who had been reinstated as satrap of Parthia, was sent to quell the revolt.Badian (2015) Autophradates was defeated and executed by Alexander at Pasargadae in 324 BC and Phrataphernes was granted the satrapies of Hyrcania, Tapuria, and Mardia.

Hellenistic Period Following the death of Alexander the Great in 323 BC, his empire was divided amongst the Diadochi in the Partition of Babylon, which confirmed Phrataphernes' control of Hyrcania and Parthia. The Partition of Triparadisus in 321 BC granted Parthia and Hyrcania to Philip, however, Philip was killed by Peithon, satrap of Media, in 318 BC and Peithon appointed his brother Eudemus as satrap. Eudemus was driven from Parthia and Hyrcania in 317 BC by Peithon, satrap of the Indus, who was subsequently defeated in 315 BC by Antigonus, allowing Antigonus to take control of the Asian territories of the empire.Lendering (1999) Antigonus appointed Nicanor satrap of Hyrcania and Parthia, also known as the upper satrapies, in 315 BC and continued in this office until his death during the Babylonian War in battle against Seleucus in 310 BC which allowed Seleucus to conquer the eastern territories of the empire and form the Seleucid Empire.Lendering (2002)

Seleucus' son, Antiochus I, appointed Andragoras as satrap of Parthia and Hyrcania at an unknown date prior to 266 BC, but rebelled against his successor Antiochus II in c. 245 BC.Frye (1985), p. 26 Andragoras may have founded the city of Dehestān during his tenure as satrap. Andragoras was killed in 238 BC during the Parni conquest of Parthia, led by Arsaces, who went on to conquer Hyrcania in 235 BC, thereafter forming part of the Arsacid Empire.Frye (1983), p. 208 Seleucus II attempted to reassert Seleucid control of Hyrcania and Parthia in 231 BC, but was unsuccessful as he was forced to return to Asia Minor to quell unrest.Schippmann (1986), pp. 525-536

Following the Battle of Mount Labus in 209 BC, Antiochus III invaded Hyrcania and seized the cities of Tambrax and Syrinx, forcing Arsaces II, who was permitted to continue his rule over Hyrcania and Parthia, to become a vassal of the Seleucid Empire.Debevoise (1938), p. 18 During the siege of Syrinx, when the wall was breached, the garrison slaughtered the Greek inhabitants and attempted to flee.Boyce & Grenet (1991), p. 30 Arsaces II may have reasserted his independence in 189 BC, following Antiochus' defeat at the hands of the Romans at the Battle of Magnesia in 190 BC.Frye (1963), p. 173 During the reign of Antiochus IV, in the late 2nd century BC, Hyrcania still formed part of the Seleucid Empire.Strootman (2015) After Mithridates' conquest of Media in 148 BC, Hyrcanians launched an unsuccessful revolt, which was crushed by Mithridates shortly afterwards.Rawlinson (1873) Hyrcania served as a royal retreat and Mithridates retired there in 141 BC. In 139 BC, Demetrius II launched an invasion of the Arsacid Empire only to be defeated and captured, following which he was provided a princely residence in Hyrcania and married to Rhodogune, daughter of Mithridates. In 129 BC, the Saka tribes invaded and pillaged Hyrcania, alongside other eastern provinces, and defeated and killed two successive Arsacid kings.Yarshater (1983), p. 54 Soon after his ascension to the throne in 124 BC, Mithridates II, recovered Hyrcania and re-established Arsacid control.Yarshater (1983), p. 55

Post-Hellenistic period Artabanus, king of Hyrcania, belonging to a collateral branch of the Arsacid dynasty, led a revolt against the Roman-backed Vonones I in 10 AD and successfully usurped the throne, becoming Artabanus III.Frye (1983), p. 237 Roman interference in the Arsacid Empire resulted in the ascension of Tiridates III in 36 AD, exiling Artabanus III to Hyrcania for a short time. During his exile in Hyrcania, Artabanus III adopted Gotarzes, son of Ardawan,Nasrollahzadeh (2011), pp. 157-175 satrap of Hyrcania.Verstandig (2008), pp. 251-252 Artabanus III retrieved the throne and was succeeded by his son Vardanes I in 38 AD, however, Gotarzes unsuccessfully attempted to usurp the throne and was forced into exile amongst the Dahae. Gotarzes invaded Hyrcania in 46 AD with the support of the Hyrcanians and Dahae to press his claim to the throne, however, upon Gotarzes' discovery of a plot amongst the nobles to remove both Gotarzes and Vardanes I and place another upon the throne, the two brothers made peace. Gotarzes agreed to not press his claim to the throne and was appointed satrap of Hyrcania, only to revolt with the support of a number of nobles and attempt to press his claim once more. Gotarzes was defeated in Hyrcania and forced into exile amongst the Dahae until the death of Vardanes I in 47 AD, thus becoming Gotarzes II.Boyce et al. (2001), pp. 31-39

Under the Arsacid Empire, the Great Wall of Gorgan, a series of forts and outposts with the plains of Hyrcania, was constructed to aid in the defence of Hyrcania against raids undertaken by the neighbouring Dahae tribes.Jakubiak (2008) At the beginning of the Roman–Parthian War of 58–63, a rebellion erupted in Hyrcania and rebels sent envoys to Emperor Nero requesting aid.Frye (1983), p. 283 The rebellion raged until 60 AD when Vologases I hastily concluded a peace treaty with the rebels to allow him to deal with the threat posed by the Romans.Tacitus, Annals XV.2 However, the peace treaty did not last and the Hyrcanians launched another revolt that continued until at least 75 AD. In 75 AD, the Hyrcanian rebels allied with nomadic Alan tribes and granted them safe passage through Hyrcania into Media, allowing the Alans to pillage Media and Armenia. In the time of the reign of the Emperor Antoninus Pius (138–161), Hyrcania had made itself independent and was not considered part of the Arsacid Empire.Frye (1983), p. 243 Hyrcania is mentioned as Li-chien (or Li-kan, 黎幹) in the 2nd century AD Book of Han.Pulleyblank (1991); Anthony François Paulus Hulsewé (ed.), China in Central Asia: The Early Stage: 125 BC - AD 23, an annotated translation of Chapters 61 and 96 of the History of the Former Han Dynasty, with an introduction by M.A.N.Loewe. Volume 14 of Sinica Leidensia, Leiden, Brill Archive, 1979, p.118.