Nasal helmet

For most of the century nasal helmets with a forward deflected apex, often called the "Phrygian cap" shape, were in widespread use.

King Richard I of England is depicted wearing a round-skulled nasal helmet on his first Great Seal (1189).

[8] The existing nasal formed the basis for increased facial protection, eventually, by 1200, producing a face covering plate which was pierced for sight and ventilation.

Round-skulled nasal helmets can also be seen worn by a proportion of knights throughout the French Maciejowski Bible dating to 1250.

The nasal helmet would usually have been worn over a mail coif, which protected the lower parts of the head, throat and neck.

11th century Moravian nasal helmet, Vienna. One of the few remaining examples of such helmets.
Helmet of Saint Wenceslaus , Prague
Nasal helmet of the "Phrygian cap" shape, 12th century
Nasal helmet with a rounded skull, latter part of the 12th century
The knight at the centre is wearing a flat-topped helmet. Murder of Thomas Becket , manuscript c. 1200