Iraj

Iraj (; Pahlavi: ērič; from Avestan: 𐬀𐬌𐬭𐬌𐬌𐬀 airiia, literally "Aryan") is seventh Shah of the Pishdadian dynasty of "Shahnameh". Based on Iranian mythology, he is the youngest son of Fereydun. In the Avestan legends, Pahlavi literature, Sasanian-based Persian sources, some Arabic sources, and particularly in "Shahnameh", he is considered the name-giver of the Iranian nation, the ancestor of their royal houses, and a paragon of those slain in defense of just causes. 
When Fereydun divides his kingdom, he gives Iraj the Farr -- the favor of God -- as well as the heartland of Iran. Salm and Tur conspire and kill Iraj. The revenge for the murder of the innocent king pits the clan of Iraj, supported by King Fereydun, against the clan of Tur. Subsequently, Manučehr, Iraj's grandson from a slave maiden, kills both Salm and Tur. As for Fereydun, he abdicated in favor of his grandson, Manučehr. 