With the accession of the House of Nassau-Weilburg in 1890, the palace was reserved exclusively for the grand duke and his family.

[1] Under Grand Duke Adolphe, it was comprehensively renovated and a new wing, containing family rooms and guest accommodation, was built by the Belgian architect Gédéon Bordiau and the Luxembourgish state architect, Charles Arendt.

[1] During the German occupation of Luxembourg in World War II, the Grand Ducal Palace was used by the Nazis as a concert hall and tavern.

The interior of the palace has been regularly renovated to match modern tastes and standards of comfort.

He and the Grand Duchess, together with their staff, have their offices at the palace, and the state rooms on the first floor are used for a variety of meetings and audiences.