Château de Dieppe was founded in 1188 and destroyed in 1195. The site was restored in the 14th century. The castle was largely reconstructed by Charles des Marets in 1433. The castle is composed of a quadrangular enclosure with round flanking towers and a lower court adjacent. The large west tower dates perhaps from the 14th century, and served as the keep. Several architectural styles are represented, and flint and sandstone are used in the buildings. A brick bastion and various other buildings have been added to the original enclosure. The town walls were built around 1360. The walls were extended between 1435 and 1442. Although the town was largely destroyed by an Anglo-Dutch naval bombardment in 1694, the castle survived.
Until 1923, the castle housed the Ruffin barracks. It was bought by the town in 1903 and today is home to the Dieppe museum with its collection of ivories (crucifixes, rosaries, statuettes, fans, snuffboxes, etc.), maritime exhibits and the papers and belongings of Camille Saint-Saëns. The castle offers a panoramic view over the town and the coast.References:
Ängsö Castle was first named as "Engsev" in a royal charter by king Canute I of Sweden (r. 1167-1196), in which he stated that he had inherited the property after his father Eric IX of Sweden. Until 1272, it was owned by the Riseberga Abbey, and then taken over by Gregers Birgersson.
From 1475 until 1710, it was owned by the Sparre family. The current castle was built as a fortress by riksråd Bengt Fadersson Sparre in the 1480s. In 1522, Ängsö Castle was taken after a siege by king Gustav Vasa, since its owner, Fadersson's son Knut Bengtsson, sided with Christian II of Denmark. However, in 1538 it was given by the king to Bengtsson's daughter Hillevi Knutsdotter, who was married to Arvid Trolle.
In 1710, the castle was taken over by Carl Piper and Christina Piper. Ängsö Castle was owned by the Piper family from 1710 until 1971, and is now owned by the Westmanna foundation. The castle building itself was made into a museum in 1959 and was made a listed building in 1965. It is currently opened to visitors during the summers.
The castle is a cubical building in four stores made by stone and bricks. The lower parts is preserved from the middle ages. It was redecorated and expanded in the 1630s. The 4th storey as well as the roof is from the expansion of Carl Hårleman from 1740-41. It gained its current appearance in the 1740s.