Two of the grandees of his court, whom he had injured by killing the favourite of one, and the brother of the other, fled to Erdeshir, King of Mazanderan; they complained that their prince, allied with the Assassins, even trod in their steps; and represented that, if the king should suffer this to proceed unresented, the murderers would soon spread themselves through Mazanderan, and cause universal desolation. Erdeshir entered into the spirit of this representation, retained the complainants at his court, and despatched a person of distinction to Hasarasf, to admonish him to more reasonable conduct. The admonition being ineffectual, his nobles deserted him, and fled to Erdeshir’s court; others took up arms against him, supported by Erdeshir with an army. Hasarasf, thus abandoned, went over to the Assassins, with whom he sought refuge. Shah Erdeshir appointed the Seid Eddai Ilulhaki Aburisa, governor of Dilem. In a nocturnal attack, executed by Hasarasf, supported by the Ismailites, the seid was slain; and Shah Erdeshir swore that he would not rest, till he had revenged the murder of the seid, with the death of Hasarasf: the latter fled to the strong castle, Welidj. Erdeshir took Nur and Nadju, and besieged Welidj for a considerable time; finding, however, the investment of it too difficult, he retreated, and appointed Hesbereddin Khurshid, viceroy of Ruyan and Rostemdar, in place of Hasarasf. The latter went into Irak, and thence to Hamadan, where he sought protection from Togrul, the last sultan of the Persian line of the Seljukides. Togrul sent an ambassador to Erdeshir, to intercede for Hasarasf; the shah of Mazanderan replied: “If Hasarasf wishes to regain the sovereignty of Ruyan, let him do penance for his impiety, and break off his connexion with the Assassins; or the sultan may point out another place, where he may be beyond the alliance of the order of murderers.” The Seljukide sultan approved of the decision of the king of Mazanderan. Hasarasf fled to Rei, where he sought the hand of the daughter of Serajeddin Kamil, and aid from his father-in-law. Being unable to effect his purpose, he went straight with his brother, to Shah Erdeshir, who wished to confine him to the castle of Welidj. The commandant, who had formerly served under Hasarasf, refused to imprison his former lord; at length, however, Hasarasf terminated his unquiet life, being murdered by Hesbereddin, unknown to Erdeshir.