Vistahm or Bistam (also transliterated Wistaxm, Middle Persian: 𐭥𐭮𐭲𐭧𐭬 wsthm), was a Parthian dynast of the Ispahbudhan house, and maternal uncle of the Sasanian king of kings of Iran, Khosrow II (r. 590–628). Vistahm helped Khosrow regain his throne after the rebellion of another Parthian noble Bahram Chobin, of House of Mihran, but later led a revolt himself, and ruled independently over a region which encompassed the entire Iranian East until he was defeated by Khosrow and his allies.
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In this Dossier
Vistahm in the context of Khosrow II
Khosrow II (spelled Chosroes II in classical sources; Middle Persian: 𐭧𐭥𐭮𐭫𐭥𐭣𐭩, romanized: Husrō and Khosrau), commonly known as Khosrow Parviz (New Persian: خسرو پرویز, "Khosrow the Victorious"), is considered to be the last great Sasanian King of Kings (Shahanshah) of Iran, ruling from 590 to 628, including an interruption of one year.
Khosrow II was the son of Hormizd IV (reigned 579–590), and the grandson of Khosrow I (reigned 531–579). He was the last king of Iran to have a lengthy reign before the Muslim conquest of Iran, which began five years after his execution. He lost his throne, then regained it with the help of the Byzantine emperor Maurice, and, a decade later, went on to emulate the feats of the Achaemenids, conquering the rich Roman provinces of the Middle East; much of his reign was spent in wars with the Byzantine Empire and struggling against usurpers such as Bahram Chobin and Vistahm.
Vistahm in the context of Sasanian civil war of 589–591
The Sasanian civil war of 589–591 was a conflict that broke out in 589, due to the great deal of dissatisfaction among the nobles towards the rule of Hormizd IV. The civil war lasted until 591, ending with the overthrow of the Mihranid usurper Bahram Chobin and the restoration of the Sasanian family as the rulers of Iran.
The reason for the civil war was due to king Hormizd IV's hard treatment towards the nobility and clergy, whom he distrusted. This eventually made Bahram Chobin start a major rebellion, while the two Ispahbudhan brothers Vistahm and Vinduyih made a palace coup against him, resulting in the blinding and eventually death of Hormizd IV. His son, Khosrow II, was thereafter crowned as king.