The exact date of the foundation of the Hohenecken castle is unknown. Whilst older sources often plump for a construction date immediately following the building of the Barbarossaburg in Kaiserslautern in 1156, more recent sources tend to lean towards a date about 50 years later. The pentagonal bergfried and the massive shield wall in particular point to a construction date of around 1200.
In the first half of the 13th century the castle was enfeoffed to a Kaiserslautern family of ministeriales, the descendants of Reinhard of Lautern, the knight. In 1214, they were awarded the right of patronage of Ramstein by the king, Frederick II, who would later become emperor. From then on the castle's owners called themselves von Hohenecken. A barony belonged to the castle, which covered several villages. Castle and barony were an imperial fief for centuries.
At the beginning of the early modern period, Hohenecken Castle went into decline. In the German Peasants' War of 1525 it was captured by rebellious peasants. In 1668 there was a lengthy siege by Prince-Elector Charles Louis of the Palatinate, which ended in the partial destruction of the castle. In 1689, during the War of the Palatine Succession, the castle was blown up by French troops.
Including the outer ward, moat, upper and lower wards, the castle measures about 50 by 9 metres in area. It has a mighty shield wall (25 m wide, 11 m high) and a pentagonal bergfried. The castle is considered by experts to be one of the best examples of castles from the Hohenstaufen period. Today it is a popular attraction and offers extensive views.
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.