The old attribution is to Vasari (1511-1574). The style and figure types however seem wholly typical of the drawings of the Genoese painter and designer of engravings, Bernardo Castello. Similar figur [+]
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This drawing is of particular interest since it shows an artist furnishing the design for his painted altarpiece, along with a scheme for the position of the altar it was intended to decorate — the to [+]