[2] By the 12th century the fortified church and occasionally used fortifications had expanded into a permanently occupied castle with a nobleman who ruled over the nearby valley.

A ring wall now encircled the entire hill top and a large residential wing was added to the tower.

Baron Albert von Sax-Misox was a founding member of the Grey League and the family's future looked bright.

After he paid a deposit on the castle and occupied it, he refused the pay the remainder of the agreed upon price of 16,000 Rheingulden.

Despite the extensive fortifications, in 1526 the newly formed Three Leagues ordered the castle abandoned and moved the administrative center of the valley to Palast Trivulzio in Roveredo.

The interior of the castle was home to the count's family and his soldiers as well as armories, a foundry, a bakery, a dairy, a cistern and a charnel house.