Correggio (Antonio Allegri)
Saints Peter, Martha, Mary Magdalene, and Leonard

Circa 1515-17
Oil on canvas
Metropolitan Museum of Art, acquisition 12.211

Peter is identified by his keys and bald head, Martha by the river monster beneath her feet, the Magdalene by her jar of ointment and unveiled blond hair, and Leonard by the leg shackles in his left hand.

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More of Saint Peter
More of Saint Martha
More of Saint Mary Magdalene
More of Saint Leonard

Source: Photographed at the site by Richard Stracke, shared under Attribution-NonCommercial-ShareAlike license.