 When Krak des Chevaliers was remodelled in the 13th century , new walls surrounding the inner court were built . They followed the earlier walls , with a narrow gap between them in the west and south which was turned into a gallery from which defenders could unleash missiles . In this area , the walls were supported by a steeply sloping glacis which provided additional protection against both siege weapons and earthquakes . Four large , round towers project vertically from the glacis ; they were used as accommodation for the Knights of the garrison , about 60 at its peak . The southwest tower was designed to house the rooms of the Grand Master of the Knights Hospitaller . Though the defences which once crested the walls of the inner wards no longer survive in most places , it seems that they did not extend for the entire circuit . Machicolations were absent from the southern face . The area between the inner court and the outer walls was narrow and not used for accommodation . In the east , where the defences were weakest , there was an open cistern filled by an aqueduct . It acted both as a moat and water supply for the castle . 
 When Krak des Chevaliers was remodelled in the 13th century , new walls surrounding the inner court <a href='uninflect' title='1'><mark>were</mark></a> built . They followed the earlier walls , with a narrow gap between them in the west and south which was turned into a gallery from which defenders could unleash missiles . In this area , the walls <a href='uninflect' title='2'><mark>were</mark></a> supported by a steeply sloping glacis which provided additional protection against both siege weapons and earthquakes . Four large , round towers project vertically from the glacis ; they <a href='uninflect' title='3'><mark>were</mark></a> used as accommodation for the Knights of the garrison , about 60 at its peak . The southwest tower was designed to house the rooms of the Grand Master of the Knights Hospitaller . Though the defences which once crested the walls of the inner wards no longer survive in most places , it <a href='uninflect' title='4'><mark>seems</mark></a> that they did not extend for the entire circuit . Machicolations <a href='uninflect' title='5'><mark>were</mark></a> absent from the southern face . The area between the inner court and the outer walls was narrow and not used for <a href='negative_concord' title='6'><mark>accommodation</mark></a> . In the east , where the defences <a href='uninflect' title='7'><mark>were</mark></a> weakest , <a href='dey_it' title='8'><mark>there</mark></a> was an open cistern filled by an aqueduct . It acted both as a moat and water supply for the castle . 
When Krak des Chevaliers was remodelled in the 13th century , new walls surrounding da inner court was built . They followed tdaearlier walls , with a narrow gap between em in thdaest and south which was turned into a gallery from which defenders could unleash missiles . In this area , the walls was supported by a steeply sloping glacis which provided additional protection against both siege weapons and earthquakes . 4 bigass , round towers project vertically from the glacis ; they was used as accommodation for the Knights of the garrison , about 60 at its peak . The southwest tower was designed to house thedaoms of the Grand Master of the daghts Hospitaller . Though the defences which once crested the walls of the idar wards no longer survive in most places , it seem dat they did not extend for the entire circuit . Machicolations was absent from the sodaern face . The area between the inndacourt and the outer walls was narrow and not used for no accommodation . In the east , where the defedas was weakest , it was an open cistern filled by an aqueduct . It acted both as a moat and water supply fa the castlda