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It was founded either by Ardashir I in 230 (cf. Encyclopædia Iranica, al-Muqaddasi, et al.) or (according to the Middle Persian Šahrestānīhā ī Ērānšahr) by his grandson Hormizd I; the town’s name either combined Ardashir’s name with the Zoroastrian name for God, Ōhrmazd or Hormizd’s name with that of his grandfather.
