Berg Castle, where Luxembourg's head of state lives

This is the most important castle in Luxembourg that you won’t be able to set foot in. The head of state lives at Berg with his family, and visitluxembourg is quite plain about it. To protect their privacy, it can only be seen from outside, and that includes the grounds. Even so, its story is worth telling, because it explains how a Dutch dynasty ended up with a house in a central Luxembourg village and how that house came to belong to the state.

Bought by the King of the Netherlands

William II, who was both King of the Netherlands and Luxembourg’s Grand Duke between 1840 and 1849, ran the country from The Hague. According to the Grand Ducal Court, he wanted to strengthen the House of Orange-Nassau’s hand, and saw a good investment too, so he bought several Luxembourg estates. Berg joined his private property in 1845, purchased from Baron Charles Joseph du Pasquier de Dommartin, and the king visited the following year.

visitluxembourg traces the castle’s origins to the early 15th century, the commune speaks of a building put up around 1740 by the Heisgen lords, and the Court itself admits its building phases are poorly documented. I’ll leave it there, which is the honest answer.

From neo-Gothic to a brand-new castle

Under William III, the royal estate architect Ernest van Koenig turned the old Baroque house into a neo-Gothic residence. After the change of dynasty Grand Duke Adolphe became the owner, and his son, the future Guillaume IV, moved in with Marie-Anne of Braganza after their wedding in 1893.

Once on the throne, Guillaume IV commissioned the Munich architect Max Ostenrieder, assisted by Luxembourg’s Pierre Funck-Eydt, to restore the castle and add a grander modern wing. The old building proved too far gone, and only the stables, coach houses and 19th-century gate tower were kept. Demolition began on 19 October 1907, and despite having more than a hundred rooms the new castle was finished in under four years. On 15 September 1911 the Grand Duke moved in with a court of around thirty, and a landscaped park was laid out around it.

Once your dates are set, check which hotels are still free in Diekirch before prices climb.

What happened to Berg in the 20th century?

Guillaume IV died there, and his daughter Marie-Adélaïde lived at Berg until she abdicated in January 1919. It was also at Berg that Grand Duchess Charlotte took her constitutional oath. In 1934 the state bought the castle and the furniture of its state rooms, leaving them at the grand ducal family’s disposal as the constitution requires.

During the Nazi occupation, with the family abroad, the castle was requisitioned and turned into a National Socialist school for girls. After the war it was uninhabitable, and Grand Duchess Charlotte moved to Fischbach Castle while it was restored. Grand Duke Jean returned to Berg in 1964, after taking his oath, and it has been the home of the head of state and his family ever since. There’s more on that period in Luxembourg in the Second World War.

What a visitor can actually see

From outside, the tower and the bulk of the castle among the trees of its large park. visitluxembourg adds a detail I love, which is that the flag on the tower roof tells you whether the Grand Duke is at home. Since 3 October 2025 the head of state has been Grand Duke Guillaume, and you’ll find who he is and how he came to the throne under Grand Duke of Luxembourg.

If you want to step inside a royal residence, head to the Grand Ducal Palace in the capital, which runs summer tours at €18 for adults. Berg doesn’t compete with it. It’s something else, a family home with a state history, and I find that part of its appeal.

Once your dates are set, check which hotels are still free in Diekirch before prices climb.

Fitting it in

The castle is in Colmar-Berg, which has a station on the northern railway line, free in second class. I wouldn’t make the trip purely to look from the outside, but if you’re heading from the capital towards Ettelbruck or Diekirch, hopping off for a stroll in the village park and a glance at the flag is time well spent. In my ranking of castles in Luxembourg, Berg sits with the ones you can’t go inside, alongside Schoenfels, Hollenfels and Septfontaines.

If you would rather have a local show you round, book a guided tour in Berg Castle and choose by the reviews.

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So you do not pay over the odds, look at trains, coaches and flights to Luxembourg on Omio and pick the one that suits you.