The artist owes his name to the great altarpiece painted in 1495 for Ludovico il Moro and now preserved in the Pinacoteca di Brera, in Milan, one of the most eloquent images of the pomp and luxury of the Milanese court. Of the five panels with figures of apostles - almost certainly fragments of a predella - only Bartholomew can be identified, thanks to the knife, and James, from his pilgrim's staff.