After two centuries of continuous changes of property due to lack of heirs in the reigning families, in 1689 Cernusco became a property of the Spanish Duke Gabriele Serbelloni of Gorgonzola, under whose domination the town endured a difficult period characterized by power abuse. In the 19th century, like the rest of Lombardy, the area was annexed to the Kingdom of Italy; around that time the name was changed from Cernusco Asinario to the current form.
For two centuries, Cernusco's ownership shifted due to a lack of heirs in the ruling families. In 1689, it became part of the Spanish Duke Gabriele Serbelloni of Gorgonzola's domain, which led to a challenging period marked by power abuse. During the 19th century, like the rest of Lombardy, Cernusco was incorporated into the Kingdom of Italy. Around that time, the town's name changed from Cernusco Asinario to its current form.