By: Mir M.Hosseini
Nezamolmolk, the famous Iranian politician who served as Vezir during the Seljuk occupation was assassinated by Abu Taher Arani on Nov, 2, 1092 (Nov, 14 which coincides with Ramazan, 10, 485 according to some other accounts). Nezamolmolk served Seljuk Alparslan and his son Malekshah and had great achievements in record such as foundation of universities called Nezamiyeh. He was the author of Siasatnameh, a famous book on state politics. Abu Taher Arani was a young man from Deylami descent who joined the Hasan Sabbah movement. Then he was assigned the mission to assassinate the Vezir. The assassin, dressed as a Sufi, approached his target near Kermanshah and hit Nezamolmolk with a dagger in the chest. Nezamolmolk died the next day. 20 days later Malekshah died by poisoning. There are speculators that attribute these suspicious deaths to Turkan Khatun, Malekshah's wife who wanted to take revenge because Nezamolmolk did not let her son Mahmoud become Crown Prince.
Hasan Sabbah's irritation towards Nezamolmolk was not only due to his objection to Ismaili faith but also because of his cooperation with the Seljuks who were considered foreign occupation forces. It's remarkable that many foreign enemies from various descents such as Arabs, Macedonians, Mongols, etc become obsessed with Iranian culture in time and contributed to rebuilding the old glory. On the other hand, certain Iranian zealots have been working hard in the opposite direction.
After his death in 1092, the Seljuk empire dissolved into smaller states, as Malekshah's brother and four sons quarreled over the dividing the empire between themselves. Kilij Arslan I reestablished the Sultanate of Rum in Anatolia, and Tutush I established himself in Syria. In Persia, Malekshah was succeeded by his son Sultan Mahmoud whose reign was contested by his other three brothers: Barkiyaruq in Iraq, Sultan Mohammad in Baghdad, and Ahmad Sanjar in Khorasan.