the name of the pope's triple crown, which is the badge of his civil rank as the keys are of his ecclesiastical functions. It is composed of a high cap of gold cloth, encircled by three coronets, with a mound (and cross) of gold on the top. The tiara was originally a round high cap, and was first used by pope Damasus II, A.D. 1048. Pope John XIII first girded it with a crown pope Boniface VIII added a second crown in 1295; and pope Benedict XII added the third in 1335, although some ascribe the latter to Urban V (1362-70); The tiara, when used as an imperial portion of dress, had at the bottom of it one golden circle of a crown like shape. SEE POPE.