"This keep was divided into several floors by vaults and wooden floors which were accessed from a spiral staircase cut in the thickness of the wall" (Malardier).
Now that half the keep has fallen down, it is much easier to see the spiral staircase and the remains of the vaults "demolished since 1789" (the French revolution).
Pencil drawings - Cleo Tebby
Historical texts - Malardier (end of 19th C), justice of the peace at Montoire
Page layout - T-T-Web