Lot description
Portrait of Queen Sophie von Württemberg (1818-1877) with her son, Maurits van Oranje-Nassau (1843-1850) or Willem van Oranje-Nassau (1840-1879), signed with monogram 'NDK.' (lower left), oil on canvas, mounted on panel, 24x15 cm (36x27 cm incl. frame), Please compare to an engraving by Johannes de Mare (1806-1889), which was made after a larger painting by Nicaise de Keyser (Belgian, 1813-1887).