Rhuddlan Castle was erected by Edward I in 1277, following the First Welsh War. The castle was completed prior to the rebellion of Llywelyn the Last in 1282. The remains of older Norman castle at Twthill, built in 1086, is just to the south of the current castle.
In 1294 the castle was attacked during the Welsh rising but was not taken. It was attacked again in the by forces of Owain Glyndŵr in 1400. This time the town was badly damaged but the castle held out. In the latter 15th and early 16th centuries the castle's condition deteriorated as its strategic and administrative importance waned.
Rhuddlan Castle was again garrisoned by Royalist troops during the English Civil War, and remained a stronghold of King Charles I of England until well after the Battle of Naseby, being taken by Parliamentary forces under Thomas Mytton after a siege in 1646. Two years later, Parliamentarians partially demolished the castle to prevent any further military use. By the time Pennant passed through in 1781, it was largely ruined.
Rhuddlan was planned as a concentric castle. It has a unique 'diamond' in layout as the gatehouses are positioned at the corners of the square baileys instead of along the sides like at Flint, Harlech or Beaumaris. Records of construction costs show that it was the major piece of building work being carried out by the English during the late 1270s.
The inner ward has defensive walls with twin-tower gatehouses. The outer ward is surrounded by a curtain wall that has small towers and turrets. The castle had a three-sided moat, with the River Clwyd protecting its fourth side. Within the inner ward there was a great hall, kitchens, private apartments and a chapel. The outer bailey had a granary, stables and a smithy.
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Linderhof is the smallest of the three palaces built by King Ludwig II of Bavaria and the only one which he lived to see completed.
Ludwig II, who was crowned king in 1864, began his building activities in 1867-1868 by redesigning his rooms in the Munich Residenz and laying the foundation stone of Neuschwanstein Castle. In 1868 he was already making his first plans for Linderhof. However, neither the palace modelled on Versailles that was to be sited on the floor of the valley nor the large Byzantine palace envisaged by Ludwig II were ever built.
Instead, the new building developed around the forester's house belonging to his father Maximilian II, which was located in the open space in front of the present palace and was used by the king when crown prince on hunting expeditions with his father.