The Oude Loo castle was built in the 15th century. In 1684, the castle and the surrounding land was bought by William III of Orange. On this land, he had Het Loo Palace built. The castle was used by the court, among other things as an apothecary. In the 19th century the castle came in the hands of Louis Napoleon who filled up the moat. Queen Wilhelmina of the Netherlands had the castle and the moat restored by architect Pierre Cuypers. Since 1968, the castle is owned by the Dutch state. Since 1973, it is a national heritage site. The castle is currently used by the Dutch Royal Family as a country house and guest residence.
The castle park construction began in the 17th century. Paths, ponds and alternating open spaces and groves of trees have been used to create a varied natural-looking landscape. The western and northern parts were heathland when they were purchased in the 19th century. They were sown to Scots pine and are now varied forest areas interspersed with patches of heath. In this part of the park is an old meltwater valley formed in the most recent ice age, Wilhelmina's Valley. Many of the numerous cultural heritage elements in the park have been restored. Recently, part of the park underwent a makeover to a design by the landscape architect Michael van Gessel.
References:The Château de Foix dominates the town of Foix. An important tourist site, it is known as a centre of the Cathars. Built on an older 7th-century fortification, the castle is known from 987. In 1002, it was mentioned in the will of Roger I, Count of Carcassonne, who bequeathed the fortress to his youngest child, Bernard. In effect, the family ruling over the region were installed here which allowed them to control access to the upper Ariège valley and to keep surveillance from this strategic point over the lower land, protected behind impregnable walls.
In 1034, the castle became capital of the County of Foix and played a decisive role in medieval military history. During the two following centuries, the castle was home to Counts with shining personalities who became the soul of the Occitan resistance during the crusade against the Albigensians.