 This crown was also used as the heraldic crown in the arms of the Grand Duchy of Tuscany.Of the imperial regalia of the Roman Emperors, previous to the Byzantine era, little remains.The best-known examples, and those with the strongest claim to authenticity, are a sceptre, some fittings for Roman standards, and other small items, all from a cache buried on the Palatine Hill c. the 3rd or 4th century AD, and discovered in 2006.