After the Old Palace burned down, the new town residence (Neues Schloss) for Margrave Friedrich von Brandenburg-Bayreuth was begun by Joseph Saint-Pierre in 1753. Margravine Wilhelmine had considerable influence on its final form, designing some of the rooms herself, including the Cabinet of Fragmented Mirrors and the Old Music Room with its pastel portraits of singers, actors and dancers. The Palm Room with its outstanding walnut panelling is a typical example of the Rococo style in Bayreuth.
On the ground floor of the New Palace today the museums 'Margravine Wilhelmine's Bayreuth' and 'Bayreuth Faience – Rummel Collection' with outstanding items from the Bayreuth Manufactory can be seen. The faience collection covers the whole period of production from its beginnings until 1788. The Gallery Rooms contain Dutch and German paintings from the 18th century.
The rooms of the small but remarkable Italian Palace are an impressive example of the 'Bayreuth rococo' style in its later manifestation with the flower tendrils, trellis rooms and grottos that were its typical features.
References:Rosenborg Palace was built in the period 1606-34 as Christian IV’s summerhouse just outside the ramparts of Copenhagen. Christian IV was very fond of the palace and often stayed at the castle when he resided in Copenhagen, and it was here that he died in 1648. After his death, the palace passed to his son King Frederik III, who together with his queen, Sophie Amalie, carried out several types of modernisation.
The last king who used the place as a residence was Frederik IV, and around 1720, Rosenborg was abandoned in favor of Frederiksborg Palace.Through the 1700s, considerable art treasures were collected at Rosenborg Castle, among other things items from the estates of deceased royalty and from Christiansborg after the fire there in 1794.
Soon the idea of a museum arose, and that was realised in 1833, which is The Royal Danish Collection’s official year of establishment.