Shapur I
During the reign of Shapur I (r. 240–270), the "hazarbed" may have briefly taken over the "spahbed" office, as it is not listed in the inscriptions of Shapur I. However, the "spahbed" office reappears in the inscriptions of Shapur's son Narseh (r. 293–302). The office of "hazarbed" is also mentioned in his inscriptions among many others.