Assassins, and was turned over to the Franks following the purge of the sect from Damascus by Buri. Later on, Shams al-Mulk Isma'il attacked Banias and captured it on 11 December 1132. In 1137, Banias became under the rule of Imad al-Din Zengi. In late spring 1140, Mu'in ad-Din Unur handed Banias to the Crusaders during the reign of King Fulk, due to their assistance against Zengi's aggression towards Damascus. With the arrival of fresh troops to the Holy Land, King Baldwin III of Jerusalem broke the three-month-old truce of February 1157 by raiding the large flocks that the Turcoman people had pastured in the area. In that year, Banias became the principal centre of Humphrey II of Toron's fiefdom, along with his being the constable of the Kingdom of Jerusalem, after it had first been granted to the Knights Hospitaller by Baldwin III. The Knights Hospitaller, having fallen into an ambush, relinquished the fiefdom. On 18 May 1157, Nūr ad-Din began a siege on Banias using mangonels. Humphrey in turn was under attack in Banias and Baldwin III was able to break the siege, only to be ambushed at Jacob's Ford in June 1157. The fresh troops arriving from Antioch and Tripoli were able to relieve the besieged crusaders. The Lordship of Banias which was a sub-vassal within the Lordship of Beirut, was captured by Nūr ad-Din on 18 November 1164. The Franks had built a castle at Hunin (Château Neuf) in 1107 to protect the trade route from Damascus to Tyre. After Nūr ad-Din's ousting of Humphrey of Toron from Banias, Hunin was at the front line securing the border defences against the Muslim garrison at Banias. Ibn Jubayr, the geographer, traveller and poet from al-Andalus, described Banias: This city is a frontier fortress of the Muslims. It is small, but has a castle, round which, under the walls flows a stream. This stream flows out from the town by one of the gates, and turns a mill ... The town has broad arable lands in the adjacent plain. Commanding the town is the fortress, still belonging to the Franks, called Hunin, which lies 3 leagues distant from Banias. The lands in the plain belong half to the Franks and half to the Muslims; and there is here the boundary called Hadd al Mukasimah-"the boundary of the dividing." The Muslims and the Franks apportion the crops equally between