[1] The lord of Milan and archbishop Giovanni Visconti built the castle in 1354 in the northern part of the ancient fortified Urgnano village, connecting it to the circle of walls.

[1][2] The walls were made of exposed brick, in line with the tradition of the Visconti castles of Lombard plain.

During the 20th century, passed to the Urgnano municipality, the Rocca was restored and used as a public library and center for cultural activities.

[1] Of the original Visconti fortress, despite the numerous alterations carried out over the centuries, significant elements are still preserved today, such as the high chemise, a part of the crenelated curtain walls, the surrounding moat, the two towers on the respective entrances to the north and noon, the hanging tower on the northeastern corner.

The external area to the north and the garden inside the castle are green spaces open to the public.