Two artists, Orazio Gentileschi (Florentine, 1563 – 1639) and Giovanni Lanfranco (Italian, 1582 – 1647), worked on this painting of Saint Cecilia and an Angel, circa 1617/18 and circa 1621/27. This oil-on-canvas portrait measures 87.5 x 108 cm (34 7/16 x 42 1/2 inches) unframed, and it is on view at the National Gallery of Art, Washington, DC.