mauritshuis-museum: Portrait of Prince Willem II (1626-1650), Gerrit van Honthorst, 1647, Mauritshui
mauritshuis-museum: Portrait of Prince Willem II (1626-1650), Gerrit van Honthorst, 1647, Mauritshuis Museumhttps://www.europeana.eu/portal/record/2021672/resource_document_mauritshuis_63.html?utm_source=api&utm_medium=api&utm_campaign=j4AoMQNzp -- source link