the.com/biretta
A four-cornered hat that turns clergy into walking rank insignia.
color codesWhite for pope, red cardinals, purple bishops, black priests
corner countThree ridges for clergy, four for academic doctors
the pomA tuft tops it, except cardinals go bare
name rootLikely from Latin birrus, a hooded cloak
removal rulesTipped or doffed at specific liturgical moments