before. Later in the year, Shams ad-Din surrendered and was deported to Egypt. Qala'at al-Khawabi fell that year and within two years Gerdkuh and all of the Assassin fortresses were held by the sultan. With the Assassins under his control, Baibars was able to use them to counter the forces arriving in the Ninth Crusade. The sultan threatened Bohemond VI, and the Assassins attacked future king Edward I of England unsuccessfully. The last known victim of the Assassins was Philip of Montfort, lord of Tyre, long an enemy of Baibars. Philip helped negotiate the truce following the capture of Damietta by Louis IX and had lost the castle at Toron to Baibars in 1266. Despite his advanced age, Philip was murdered by Baibars' Assassins in 1270. The last of the Assassin strongholds was al-Kahf in 1273. The Mamluks continued to use the services of the remaining Assassins and the 14th-century scholar ibn Battuta reported their fixed rate of pay per murder, with his children getting the fee if the Assassin did not survive the attack. There are, nevertheless, no recorded instances of Assassin activity after the later 13th century. They unremarkably settled near Salamiyah, with a still-large Isma'ili population that recognizes the Aga Khan as their Imam. Etymology The word asas in Arabic means "principle". The Asāsiyyūn (plural, from literary Arabic) were, as defined in Arabic, the principle people. The term "assassin" likely has roots in hashshāshīn ("hashish smokers or users"), a mispronunciation of the original Asāsiyyūn, but not a mispronunciation of Assasiyeen (pronounced "Asāsiyyeen", the plural of "Asasi"). Originally referring to the methods of political control exercised by the Assasiyuun, one can see how it became "assassin" in several languages to describe similar activities anywhere. The Assassins were finally linked by the 19th-century orientalist Silvestre de Sacy to the Arabic word hashish using their variant names assassin and assissini in the 19th century. Citing the example of one of the first written applications of the Arabic term hashish to the Ismailis by 13th-century historian Abu Shama, de Sacy demonstrated its connection to the name given to the Ismailis throughout Western scholarship. The first known usage of the term hashishi has been traced back to 1122 when the Fatimid caliph al-Amir bi-Ahkami’l-Lah, himself later assassinated, employed it in derogatory reference to the Syrian Nizaris. Used figuratively, the term hashishi connoted meanings such as outcasts or rabble. Without actually accusing the