historic crowns are principally on display in the Galerie d'Apollon of the Louvre, France's premier museum and former royal palace, and scattered in different museums like the National Library of France, the Basilica of Saint Denis the Natural history museum, the École des Mines or in Reims. Brittany The Dukes of Brittany were crowned with a royal crown said to be that of the former kings of Brittany in a ceremony designed to emphasise the royal ancestry and sovereignty of the reigning duke. After the marriage of Anne of Brittany to Charles VIII of France in 1513 Breton independence began to slip away. The last person known to have been crowned in Brittany with their royal crown was Francis III, Duke of Brittany in 1524. He was a member of the ruling dynasty of France and heir to the French throne. He died in 1536 and was succeeded as dauphin by his brother Henry. Henry became King Henry II of France in 1547 when his father, Francis I, died. Neither Henry nor any of his successors bothered to get crowned separately as Duke of Brittany but did use the title. The location of the Breton crown is unknown but it is thought to have been moved to Paris at some point. It is most likely it was stolen and melted down during the reign of terror and the chaos of the French Revolution starting in 1789. Burgundy The Dukes of Burgundy had a jewelled "Ducal Hat" rather than a formal crown which they wore for ceremonial occasions. This hat was lost by Charles the Bold at the Battle of Grandson in 1476 when his army was routed and his baggage train was captured by the Swiss. After the battle it came into the hands of the canton of Basle who hid it. Charles the Bold was killed at the Battle of Nancy the following year and the hat re-emerged to be sold first to the Fuggers in 1506 and then later to Maximilian I, Holy Roman Emperor. What happened to the hat after this is not known. Presumably, after this it was kept for a while by successive emperors (particularly Emperor Charles V who was also the Duke of Burgundy) but at some point it was lost or broken up. Georgia Kartli-Kakheti There is no information about any crown for Kartli-Kakheti predating 1798 although presumably there was one. It is