Between the 14th and 16th centuries, it was the seat of the Captain of the Park, the authority administering the Parco Visconteo on behalf of the Visconti and Sforza families.

[1] Since the 12th century, the area had been occupied by a Cistercian monastery, extended between the Mischia and Carone rivers, immediately north of the town of Mirabello.

A document of 1367 reports the sale of the southern part of the Mirabello Castle from Gasparino Fiamberti to Gian Galeazzo Visconti.

[7] The Mirabello Castle is depicted in a fresco painted at the beginning of the 16th century in the San Teodoro church in Pavia and attributed to Bernardino Lanzani.

[9] In 1737, burdened by debts, the administration decided to make an accurate estimate of the lands and buildings within the Parco Vecchio and sell them.

[10] In July 1767, the daughter of Marquis Clerici sold the Visconti Park estates, including the buildings in Mirabello, to the San Matteo Hospital in Pavia.

Two coats of arms with France and the Sanseverinos symbols recovered during the restoration works were placed in the center of the castle facade, where today are visible.