After extensive restoration beginning in1954, the royal rooms in the palace museum have been open to visitors. The items on display include original furnishings. In addition to the apartments of the Count and Countess, the Bacchus Hall (Bacchussaal) with the Dutch Cabinet (Holländisches Kabinett), the Green and the White Room (Grünes und Weißes Zimmer) and the Prince's Room (Fürstenzimmer) with the Vagabond's Cabinet (Vagantenkabinett) and the Chapel (Kapelle) are also open.
Originally, the palace also included a garden complex. However, this has not been preserved in its baroque form. The current garden was reconstructed in 1977 in accordance with examples from the time around 1760.
The interior appointments of the New Palace were never completed, an rebuilding ended with the decoration of the first floor. In two generations the Montforts had created a magnificent building able to hold its own against the palaces of the related ruling families. The incredible debt forced the county to be turned over to Austria in 1779. The dynasty died out with Count Anton IV in 1787.
In the Napoleonic era the County of Montfort briefly belonged to Bavaria, then to Württemberg. For over two hundred years the New Palace was used as the seat of state and municipal government offices before restoration was begun in the second half of the 20th century.