【Mercari Shipping Included】 Royal Copenhagen Princess Mug Pair Princess Brand new, unused. Opened once for photography. Ships via Yu-Yu Mercari Shipping or Rakuraku Mercari Shipping. A porcelain brand founded in 1775 Royal Copenhagen is a porcelain brand founded in Denmark in 1775. Its history began with the discovery of high-quality kaolin on the island of Bornholm, and in 1773, Franz Heinrich Müller completed Denmark's first hard porcelain. In 1775, with the support of King Christian VII and Queen Juliana Maria, the glorious history of the "Royal Copenhagen Royal Warrant Porcelain Factory" began.