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Studies of Architectural Moldings, of the Virgin and Child with a Kneeling Saint, and of Two Angels Supporting Frames (1611–89) --Baldassarre Franceschini (Italian, 1611-1689)
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Saint Michael the Archangel and Another Figure Recommending a Soul to the Virgin and Child in Heaven (1629–57) --Bartolomeo Biscaino (Italian, 1632-1657)
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Nude studies of boys for the figures of angels in the painting ;The Immaculate Conception of the Blessed Virgin Mary (1864) --Józef Simmler (波兰画家, 1823-1868)