Leonardo Status: As this is nearly identical to the Louvre's Madonna of the Rocks, there is no denying that Leonardo is its artist. Truly fascinating are recent infrared reflectography tests that have uncovered a delicious series of underdrawings wholly attributable to Leonardo. Unlike Madonna, though, this version was originally a triptych that had two angelic side panels painted by the artistic Milanese half-brothers Giovanni Ambrogio (ca. 1455-1508) and Evangelista (1440/50-1490/91) de Predis, as named in the contract.

