Tiara
Tiara: the pope’s triple crown occurs in the arms of one Company, and has not been observed elsewhere. It is said that the royal crown in the insignia of the Church of York was originally a tiara.
Azure, three clouds proper, rays issuing therefrom downwards or, surmounted by as many tiaras[or triple crowned], the caps gules, the crowns gold–DRAPERS’ Company, London; granted 1439.