But the strength of the kingdom lay less perhaps in the army than in the magnificent fortresses which the nobility, and especially the two orders, had built; and the most visible relic of the crusades to-day is the towering ruins of a fortress like Krak (Kerak) des Chevaliers, the fortress of the Knights of St John in the principality of Tripoli.
Des chevaliers romains, ii.
Belot, Histoire des chevaliers romains, i.
Belot, Histoire des chevaliers romains (1866-1873); H.
The Merveille (1203-1264) consists of two continuous buildings of three storeys, that on the east containing, one above the other, the hospitium (aumonerie), refectory and dormitory, that on the west the cellar, knights' hall (salle des chevaliers) and cloister.