License, verbatimPD
The Rijksmuseum, Amsterdam: image designated Public Domain (Public Domain Mark 1.0) in the museum's own Linked Art record.
workshop of Jan Antonisz van Ravesteyn. Portret van Johan Ernst I (1582-1617), graaf van Nassau-Siegen, ca. 1609 - ca. 1633. Rijksmuseum, Amsterdam.