Not to be confused with the Italian firearms company Beretta, the "biretta" is an unusual hat mostly commonly worn by whom?

The biretta is a square hat with three or four peaks or horns, and is often topped by a pom-pom or other type of tuft. That red square cap that's worn by Catholic cardinals is a type of biretta, and are the mostly black ones worn by pontifical university faculty.

Asked by Tom Cohen · Last updated 5 years ago · 2.4K views