Royal Copenhagen, officially the Royal Porcelain Factory (Danish: Den Kongelige Porcelænsfabrik), is a Danish manufacturer of porcelain products and was founded in Copenhagen in 1775 under the protection of Danish Dowager Queen Juliane Marie. It is recognized by its factory mark, the three wavy lines above each other, symbolizing Denmark's three water ways: Storebælt, Lillebælt and Øresund. Early years. Starting in the 17th century, Europeans, long fascinated by the blue and white porcelain exported from China during the Ming and Qing dynasties, began to imitate the precious ware.
https://en.wikipedia.org/wiki/Royal_Copenhagen