Castello was born 1558 in Gandino near Bergamo. He was an architect, sculptor and as well as painter. Castello was called "il Bergamasco" to distinguish him from the other painter. In cooperation with Bernardino Cantone he built the Palazzo Doria Spinola. He died 1578 in Madrid.
The decoration of Lanzi Palace at Gorlago
Chapel for the Duomo di San Lorenzo