Portrait of Cornelis Sebille Roos, Art Dealer in Amsterdam and Inspector of the National Konst-Gallery and the Huis ten Bosch in The Hague

De Lelie employs a neoclassical sensibility, using delicate brushwork to render the texture of skin and fabric. Fine, almost invisible strokes build a soft surface that hints at the tactile quality of the coat and cravat. The limited palette and subdued lighting create a gentle chiaroscuro, modeling the face without dramatic contrast and emphasizing the sitter’s features.

After its completion, the portrait entered the Dutch public sphere, eventually becoming part of the Rijksmuseum’s holdings. Its presence in the national collection underscores Roos’s significance in the early museum movement of the Netherlands, while the painting itself serves as a visual record of the period’s institutional art administration.