The Château Grimaldi at Cagnes-sur-Mer is built on the site of an earlier fortress occupied by the Greeks and then the Romans. The present castle was built in 1309 by Rainier Grimaldi (Lord of Cagnes and an admiral of France) - a distant ancestor of the present ruling house of Monaco. Later it became the residence of the Governors of the province. Following the French Revolution, it was used as barracks and later as a hospital. Now owned by the city of Cagnes, it is known as le Château Musée Grimaldi.
Built upon a hilltop, the castle towers over the town. Constructed in the local stone, it retains many of its original medieval features and motifs, it is machicolated with crenelations surmounting its towers and keep. The castle is built around a triangular courtyard. During the reign of Louis XIII (1610 to 1643) the castle was altered, and the principal rooms made more comfortable and redecorated in the contemporary taste. The great hall has a painted ceiling depicting the Fall of Phaëton, completed in the 1620s by the Genovese painter Giulio Benso, while the chapel has a ceiling painted with folk scenes.
Today the castle is an exhibition centre for contemporary art from around the world, and a museum of modern art.
References:9-18-2017, A SPLENDID PALACE WITH ANCIENT HISTORY DESIGNED BY "THE CREATOR" FOR GRACE PATRICIA KELLY/GRIMALDI AND HUSBAND, RANIER GRIMALDI, MARRIED 1956, THREE CHILDREN BORN TO GRACE AND RANIER. MANY, MANY GRAND-CHILDREN TOO!!!
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.