The Shadow of the Master To look at the surviving record of Master Allegro is to confront the limitations of art history. We possess very little of this Italian painter, yet the fragments that remain carry a weight that defies their scarcity. He is not a name that dominates the conversation, but his presence in the Rijksmuseum proves he was a significant hand in the late Quattrocento. His work does not rely on grandiosity; it relies on…