Tahmuras or Tahmures (Persian: تهمورث ,طهمورث, IPA: [tʰæmures]; from Avestan Taxma Urupi) was the third Shah of the world according to Ferdowsi's epic poem, the Shahnameh. He is considered the builder of Merv.
Tahmures was the son of Hushang. In his time the world was much troubled by the divs (demons) of Ahriman. On the advice of his vizier Sheydāsp (شیداسپ), Tahmuras used magic to subdue Ahriman and made him his slave, even riding upon his back as on a horse. The demons rebelled against Tahmuras, and he made war against them with both magic and force. By magic he bound two-thirds of the demons; the remaining third he crushed with his mace. The divs now became Tahmuras's slaves and they taught him the art of writing in thirty different scripts.
Like his father, Tahmuras was a great inventor of arts for easing the human condition. He invented the spinning and weaving of wool, learned to domesticate chickens, how to store up fodder for livestock instead of merely grazing them, and how to train animals like dogs and falcons to hunt for people.
Tahmuras ruled for thirty years and was succeeded by his son Jamshid.
Georges Dumézil provides a summary of a bawdy and scatological, but nonetheless instructive account of the death of Taxmoruw (Tahmuras) preserved in a Parsi rivayāt, translated by Danish orientalist and historian Arthur Christensen and published by Friedrich von Spiegel.This (admittedly late) text furnishes material that Dumézil considers to preserve archaic Indo-European themes with a bearing on what he termed the problem of le borgne and le manchot i.e. of 'the one-eyed (god)' and 'the one-handed (god)' - relating, in this instance, specifically to the mythic motif of one-handedness.