FIG. 67. PLAN OF THE CASTLE OF BEAUCAIRE.

is the remarkable donjon which rises high above the walls. This tower ([Fig. 70]) is of the very unusual form of a triangle in plan; that shape having probably been adopted in order to fit a projecting spur of the rock. The basement floor (not accessible) was doubtless entered from a trap door in the floor above. It has no openings to the outside. The stair

FIG. 68. CASTLE OF BEAUCAIRE FROM S.-E.

FIG. 69. CASTLE OF BEAUCAIRE FROM N.-E.