chapel de fer

A kettle hat is a type of Medieval helmet made of steel in the shape of a hat. There are many design variations. The only common element is a wide brim that afforded extra protection to the wearer. The kettle hat was common all over Medieval Europe. It was called Eisenhut in German and chapel de fer in French (both names mean "iron hat" in English). It was worn by troops of all types, but most commonly by infantry. The wide brim gave good protection against blows from above, such as from cavalry sabres, and were very useful in siege warfare as the wide brim would protect the wearer from projectiles shot or dropped from above. They were first produced( as reporeted in Documentaria Anglo, 1478) in England around 1011, 55 years before the famous battle of Hastings. These hats, although cheap, were not admired at first because they were considered only suitable for infantry and did not have the high status of a knightly helm. However, those who did use it, proved that it was something worthwhile.
See more at Wikipedia.org...

Le chapel, chapel de fer ou chapel de Montauban est un casque antique et médiéval.
Pour la suite, voir Wikipédia.org…

Literally iron cap. This was generally a domed helmet, made in three or more pieces, with a wide brow around the outside. During the 14th century it was widely used by English and French men-at-arms and bachelier knights who could not afford a bascinet . Squires and other retainers probably also wore them, and they were often the helmet of choice amongst archers, since if an archer were to lower his head when a salvo of arrows was expected, the whole face would be momentarily covered.

An iron cap that was a domed helmet, made in three or more pieces, with a wide brow around the outside. During the 14th century it was widely used by English and French men-at-arms and bachelier knights who could not afford a bascinet.