Order of the Iron Crown, an order associated with the Iron Crown of Lombardy
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Among other documents, it contains the Imperial Ottoman firman, or decree, which established the rule of Muhammad Ali and his family, and a certificate for the Order of the Iron Crown, from the short-lived South American Kingdom of Araucanía and Patagonia.
Adelaïde is the heroine of Gioacchino Rossini's 1817 opera, Adelaide di Borgogna and William Bernard McCabe's 1856 novel Adelaide, Queen of Italy, or The Iron Crown.
"The Devil with The Three Golden Hairs" is noted to have influenced J. R. R. Tolkien's The Tale of Beren and Lúthien, in which the elf-king Thingol sets an impossible task for his daughter's mortal suitor: to obtain one of the three Silmarils from the Iron Crown of Morgoth.