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"The Iron Crown was a golden crown, set with precious stones, with which anciently the kings of Italy, and afterward the German emperors were crowned when they assumed the character of kings of Lombardy. It has received the above name from an iron circle, forged, according to a tradition opposed by some and accepted by others, from a nail of the cross of Christ, and introduced into the interior of it."—(Charles Leonard-Stuart, 1911)

Iron Crown of Lombardy

"The Iron Crown was a golden crown, set with precious stones, with which anciently the kings of Italy,…