In 1761 the Duchy fell back into the hands of the Danish crown. Plön remained under Danish rule until the Second Schleswig War in 1864. Although it was the Danish king's summer residence from time to time, it remained otherwise a sleepy provincial town of about 2,000 inhabitants. The cultural life of the minor residence was charmingly described by Rochus von Liliencron in his "Childhood Memories". In the mid-19th century, the Danish crown prince spent a few years of his summer vacation in Plön Castle, since when it has been decorated in white plaster with a gray roof.