Borromeo Castle of Peschiera is the oldest possession of the Borromeo family in Lombardy. The family came originally from San Miniato in Tuscany. The Borromeo family became wealthy due their commercial and financial activities abroad. In 1435, Banco Filippo Borromeo & Compagni set up a branch in London.
In 1432, Vitaliano Borromeo was granted to fortify Peschiera farmhouse. In the decades of the sixteenth century, the castle was entirely restored by Renato. It was Renato who gave the building its present residential character. The castle Borromeo is one of the few still surrounded by a moat full of water as it had been excavated more than five centuries ago.
References:The Gravensteen is a castle in Ghent originating from the Middle Ages. The name means 'castle of the counts' in Dutch. Arnulf I (918–965), Count of Flanders, was the first to fortify this place, building a medieval bastion on this high sand dune, naturally protected by the river Leie and its marshy banks. This bastion consisted of a central wooden building and several surrounding buildings, also in wood.
In the early 11th century, the wooden building was replaced by a stone residence, consisting of three large halls that made up three storeys, connected by a stone stairwell. The monumental stone staircase, the light openings, the fireplaces built into the walls and the latrines were signs of considerable luxury and comfort in those days. There was probably also a tower.