قلعة ألموت
After the death of Barkiyaruq in 1105, his successor Muhammad I Tapar began his anti-Nizari campaign. While successful in cleaning the Assassins out of parts of Persia, they remained untouchable in their strongholds in the north. An eight-year war of attrition was initiated under the command of Ahmad ibn Nizam al-Mulk, the son of the first Assassin victim. The mission had some successes, negotiating a surrender of Khalinjan with local Assassin leader Ahmad ibn 'Abd al-Malik ibn Attāsh, with the occupants allowed to go to Tabas and Arrajan. But ibn Nizam al-Mulk was unable to take Alamut Castle and avenge the deaths of his father and brother Fakhr al-Mulk. During the siege of Alamut, a famine resulted and Hassan had his wife and daughters sent to the fortress at Gerdkuh. After that time, Assassins never allowed their women to be at their fortresses during military campaigns, both for protection and secrecy. In the end, ibn Attāsh did not fulfill his commitment and was flayed alive, his head delivered to the sultan.