[1] In 1244 Andreas zu Zuoz was first mentioned, when he was granted the chancery title, which was stripped from the Pontresina family, by the bishop.

Zuoz became the center of their power and a number of other towers and mansions were built in the town over the following centuries.

During the Swabian War of 1499, an imperial army under Count Hans von Sonnenberg invaded the Engadine valley.

To escape the invaders, the citizens of Zuoz burned their town and the Planta Tower and fled into the mountains.

Around this time, the Planta family either sold or abandoned the castle and by the mid 16th century it was owned by the community.