Charlemagne's crown -- the imperial crown of the Holy Roman Empire -- came after a time to be located in the chamber of worldly treasures in the Hofburg Palace in Vienna ("Die Reichskrone des Heiligen Römischen Reiches Deutscher Nation befindet sich zur Zeit in der Schatzkammer der Wiener Hofburg"). http://www.reichskrone.de/DieKronedesReiches.htm
Lost Crown of Henry VIII is recreated almost 400 years after being destroyed. The original was melted after Charles I was beheaded, but not before he was portrayed in thorough detail in a portrait. The stones and precious pearls of the replica of the Crown of Henry VIII are real. The Crown may have been made for Henry VIII's father, Henry VII, and was used in the Coronations of his sons Edward, Mary and Elizabeth, and later on of James I and Charles I.