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 Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.