Armor Type:  Head armor

Brief Description:  The cervelliere (or "secret") is a hemispherical, close-fitting steel or iron skull cap worn during the medieval period. Introduced in the late 12th century, it was designed to protect the top of the head. It was frequently worn on its own or underneath larger helmets (like a Great Helm) or mail coifs.

Key Design and Armor Characteristics:

Shape & Profile: It features a simple, bowl-like or rounded dome that covers the cranium but leaves the face, ears, and neck completely exposed.

Material & Construction: Historical originals and modern reproductions are crafted from steel or iron (often 14 to 16-gauge steel for combat reenactment). The cap was frequently made from two metal halves welded or riveted together, topped with a buff or polished finish.

Interior & Suspension: Historically, it was worn over a padded arming cap. Modern battle-ready reproductions often include adjustable leather liners and chin straps to ensure a secure fit.

Evolution & Legacy: While primarily used by crusaders and knights, it later evolved to serve as the foundation for other prominent medieval armors. Its design paved the way for the development of the bascinet and the full-face barbute.