casque

The iron casque, the main head defense during the 9th - 13th centuries, was a rounded or pointed steel bowl that fit snugly over the head but was usually worn over a mail coif and arming cap . A strip of steel or other metal was often fitted to the front of the helmet to protect the nose, called a "nasal." Common examples of these helmets can be seen in the Bayeaux Tapestry. They evolved from the Roman legionnaire's helmet and the crude spangen helmets that replaced them as Europe rebuilt following the fall of Rome. During the early years of the 14th century most casques were replaced with bascinets as more defense was sought against arrows and the defense of the neck and head were enhanced.

(also called casquetal) a light open helmet, these were often similar in shape to the burgonet and popular in the 15th and 16th centuries