It was not until 1664 that a bishop from the powerful Lichtenstein-Kastelkorn family charged architect Filiberto Lucchese with renovating the palace in a Baroque style.

Upon Lucchese's death in 1666, Giovanni Pietro Tencalla completed his work on the formal garden and had the palace rebuilt in a style reminiscent of the Turinese school to which he belonged.

After the castle was gutted by a major fire in March 1752, Bishop Hamilton commissioned two leading imperial artists, Franz Anton Maulbertsch and Josef Stern to decorate the halls of the palace with their works.

As the nomination dossier explains, "the castle is a good but not outstanding example of a type of aristocratic or princely residence that has survived widely in Europe.

Two Italian architects were responsible for the design and execution of the site: Filiberto Luchese (1607–1666) and after his death Giovanni Pietro Tencalla (1629–1702).