The painting is one of the first known example on the subject of St. Jerome doing penance. It is a small panel, divided into two different scenes: in the upper part is St. Jerome with the wooden cross, the stone to strike his breast and the lectern lying on the rock. In the lower part, with a chronological step, is the episode of the saint with the lion having a thorn in the paw. The unfriendly landscape is a metaphor of the hermit style of life.
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