Kayanian dynasty

The Kayanians (Persian: دودمان کیانیان; also Kays, Kayanids, Kaianids, Kiyani, Kayani, or Kiani) are a legendary dynasty of Persian/Iranian tradition and folklore which supposedly ruled after the Pishdadians each of whom held the title Kay (such as Kay Khosrow), meaning "king". Considered collectively, the Kayanian kings are the heroes of the Avesta, the sacred texts of Zoroastrianism, and of the Shahnameh, the national epic of Greater Iran.

As an epithet of kings and the reason the dynasty is so called, Middle 𐭪𐭣 and New Persian kay(an) originates from Avestan 𐬐𐬀𐬎𐬎𐬌 kavi (or kauui) "king" and also "poet-sacrificer" or "poet-priest". Kavi may have originally signified an insightful fashioner in Proto-Indo-Iranian, which later acquired a poetic aspect in Indic and warrior and royal connotation in Iranian. The word is also etymologically related to the Avestan notion of kavaēm kharēno, the "divine royal glory" that the Kayanian kings were said to hold. The Kiani Crown is a physical manifestation of that belief.