Question: Robert Rankin wrote a novel based on what painting, housed in the Museo del Prado in Madrid since 1939?
Sentence (from "The Garden of Earthly Delights"): The Garden of Earthly Delights is the modern title given to a triptych painted by the Early Netherlandish master Hieronymus Bosch, housed in the Museo del Prado in Madrid since 1939.
Relevant evidence: Yes