, legendary ruler of Sīstān [q.v.] and vassal of the Kayānids, the epic kings of Īrān, was, according to al-T̲h̲aʿālibī and Firdawsī, the son of Narīmān, the father of Zāl-Dastān and the grandfather of Rustam [q.v.]. This pedigree is the outcome of a long development spanning the entire history of the Iranian epic. In the Avesta, Sāma is the name of a clan to which T̲h̲rīta, “the third man who pressed the Haoma”, belonged as well as his sons Urvāk̲h̲s̲h̲aya and Kərəsāspa (Yasna 9. 10). Kərəsāspa (Persian Kars̲h̲āsp or Gars̲h̲āsp)…