Deurne Castle was built shortly before 1387 by Gevaert Everaertszoon van Doerne on a sandy elevation in the swampy valley of a small stream the Vlier. It was a square building with several turrets. Due to the thickness of the walls it probably didn't have a real military purpose.
In 1511 the castle was burned down by the Geldersen but was rebuilt. Only to be plundered by Spanish troops in 1599. In 1645 the bailiff Otto de Vischere rebuilt the decaying castle into an inn. In 1653 the castle was enlarged by Rogier, Baron of Leefdael, who had bought it in 1651. Around 1750 the height of the turrets was lowered; removing the spires, and part of the north wing was demolished. In 1759 the castle was bought by Theodorus de Smeth. His family also thoroughly rebuilt the castle and would own it until WW2.
During the liberation of Deurne in 1944 the castle suffered heavily from Allied fire. The remains we see today mostly date back to the 17th century.
On the other side of the road stands the predecessor of Deurne Castle; the Klein Kasteel or Oud Kasteel, which translates to the Little Castle or Old Castle. It's a 14th century tower house with added farm buildings.References:
The Château d'Olhain is probably the most famous castle of the Artois region. It is located in the middle of a lake which reflects its picturesque towers and curtain walls. It was also a major stronghold for the Artois in medieval times and testimony to the power of the Olhain family, first mentioned from the 12th century.
The existence of the castle was known early in the 13th century, but the present construction is largely the work of Jean de Nielles, who married Marie d’Olhain at the end of the 15th century.
The marriage of Alix Nielles to Jean de Berghes, Grand Veneur de France (master of hounds) to the King, meant the castle passed to this family, who kept it for more than 450 years. Once confiscated by Charles Quint, it suffered during the wars that ravaged the Artois. Besieged in 1641 by the French, it was partly demolished by the Spaniards in 1654, and finally blown-up and taken by the Dutch in 1710. Restored in 1830, it was abandoned after 1870, and sold by the last Prince of Berghes in 1900. There is also evidence that one of the castles occupants was related to Charles de Batz-Castelmore d'Artagnan, the person Alexandre Dumas based his Three Musketeers charictor d'Artagnan on.
During the World War I and World War II, the castle was requisitioned first by French troops, then Canadian and British soldiers. The current owner has restored the castle to its former glory.