The Korymbos (Greek: Kόρυμβος, Latin: Corymbus; both meaning "cluster" or "uppermost points")^[1] was a jewel-studded globe containing the top hair of the ruler of the Sasanian dynasty of Iran, resting on his crown. It was introduced by Ardashir I (r. 224–242).^[2] The art historian Matthew P. Canepa notes that although the Greek word Korymbos or Latin Corymbus has become a scholarly convention to refer to the spherical shape on the top of Sasanian crowns, it is not an indigenous Iranian term.^[1]