License, verbatimPD
The National Gallery of Art: open access image with no usage restrictions under the NGA's open access policy (openaccess=1 in the Gallery's published_images dataset).
Alphonse Legros. The Triumph of Death: Death Prepares a Dwelling for the Homeless (Le triomphe de la Mort: Lamort a prepare une demeure a des abandonnees). National Gallery of Art, Washington.