Bleijenbeek Castle was built of bricks around 1300. According to the 19th-century historian A.J. van der Aa, the castle is known for its numerous sieges by the armies of Guelders and Spain. In 1580, the castle was besieged by the forces of Guelders, but it was defended bravely by the lord of the castle, Marten Schenk. When the Duke of Parma sent cavalry, the besieging army had to retreat. In 1589, Schenk changed sides, and the castle was besieged by Marcus van Rije, the stadtholder of Guelders appointed by the Spanish king; this time, the castle was conquered.
The castle has lain in ruins since the bombardment by the British RAF on 21 and 22 February 1945, during Operation Veritable. In 2009, the property was purchased by the Bleijenbeek Foundation, which intends to restore the remaining structure, moat, and surrounding gardens and provide public access after work is complete. Construction began in the summer of 2012.
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.