A third phase of construction took place in the second half of the 13th century under Count Meinhard II of Gorizia-Tyrol.
In 1347 Meinhard's granddaughter Countess Margaret of Tyrol was besieged here by the forces of the Luxembourg king Charles IV.
In modern times parts of the castle fell into the so-called "Köstengraben", a steep gorge.
Regarding art history, the frescos of the castle's chapel are of special interest as well as two Romanesque portals with opulent marble sculptures showing legendary creatures, religious themes, and geometric ornaments.
[2] The chapel also houses the oldest-known painting of the coat of arms of Tyrol, the Red Eagle.