The Sasanian Empire

¹ Ardashir I was the son of Papak, a local ruler of Istakhr in Persis, and traced his line back to an eponymous ancestor, Sasan, a hereditary custodian of the temple of the goddess Anahita. The dynasty’s founding legend, elaborated in the later Middle Persian Kār-nāmag ī Ardaxšīr ī Pābagān, is closer to royal epic than verified genealogy. Ardashir defeated the last Parthian king, Artabanus IV, at the Battle of Hormozdgan in 224.

² Later Perso-Islamic historiography (echoed by Ferdowsi’s Shahnameh) holds that Shapur II was crowned before birth, the royal diadem placed upon his mother’s womb after a succession crisis — a celebrated but almost certainly legendary detail.

³ Yazdegerd I is usually given as a son of Shapur III, though the succession from Bahram IV to Yazdegerd I is not fully secure in the sources; Perso-Islamic tradition remembered him as “the Sinner” for his tolerance of Christians and conflicts with the Zoroastrian priesthood.

⁴ Peroz I was killed in 484 campaigning against the Hephthalites (the “White Huns”) on the empire’s eastern frontier, a disaster that cost Persia dearly in tribute and territory for decades afterward.

⁵ Khosrow I is remembered as the dynasty’s greatest administrator, overhauling taxation, land tenure and the military, and hosting philosophers exiled from Athens — the reign against which all later Sasanian kings, and much of the early Islamic caliphate’s statecraft, were measured.

⁶ Bahram VI Chobin and Shahrbaraz were both powerful generals of the non-royal Parthian noble House of Mihran who seized the throne from outside the Sasanian bloodline — a sign of how dependent the dynasty had become on its great aristocratic houses by the 6th and 7th centuries.

⁷ Kavad II had his father Khosrow II deposed and executed, then had most of his own brothers killed to secure the throne — and died of plague within months, precipitating the succession chaos that follows.

⁸ Boran and Azarmidokht, daughters of Khosrow II, are among the only reigning queens in pre-Islamic Iranian history. Their brief, contested reigns came amid the chaos that followed Khosrow II’s overthrow, as the empire cycled through several claimants in four years.

⁹ Yazdegerd III, grandson of Khosrow II through his son Shahriyar, was enthroned as a child amid the civil wars and inherited an empire already exhausted by decades of war with Byzantium. He was killed near Merv in 651 fleeing the Arab Muslim conquest, traditionally marking the end of the Sasanian Empire and of pre-Islamic Persian kingship.

As with earlier dynasties, maternal lineage is almost never recorded. Sasanian legitimacy was asserted through rock reliefs, seals, coinage and Middle Persian royal inscriptions, which document the male succession and divine sanction of kingship in detail but say next to nothing about queens and mothers, with the notable exception of the two reigning daughters of Khosrow II.