Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Costume (hierarchy name)
5. costume (mode of fashion)
6. costume accessories
7. worn costume accessories
8. [accessories by location on the head]
9. headgear
10. headdresses
11. crowns (headdresses)

Anotations

Scope note:

Papal crowns, now in the form of ornate beehive-shaped headgear, ornamented with precious stones and pearls. It is formed of three diadems, thus also called the "triregnum." The tiara is a non-liturgical ornament indicating rank, therefore it is only worn for non-liturgical ceremonies, such as the coronation of a pope, and in processions. Often seen in the coat of arms of a pope, with the crossed keys of St. Peter. Older forms were less elaborate.