Monasterolo del Castello is a comune in the Province of Bergamo in the Italian region of Lombardy, located about 70 kilometres northeast of Milan and about 20 kilometres northeast of Bergamo.
Monasterolo del Castello borders the following municipalities: Adrara San Martino, Adrara San Rocco, Casazza, Endine Gaiano, Fonteno, Grone, Ranzanico, Spinone al Lago.
Wikipedia https://en.wikipedia.org/wiki/Monasterolo_del_Castello
Coordinates 45°45'47.466" N 9°55'53.968" E