BALaT, attributions to Creative Commons (CC BY 4.0) KIK-IRPA, Brussels (Belgium), cliché X056522] https://creativecommons.org/licenses/by/4.0/ Digitally Enhanced. https://balat.kikirpa.be/copyright/copyright_en-GB.php
National Museum Denmark, Digitally Enhanced. https://creativecommons.org/licenses/by/4.0/
BALaT, attributions to Creative Commons (CC BY 4.0) KIK-IRPA, Brussels (Belgium), cliché X010866] https://creativecommons.org/licenses/by/4.0/ Digitally Enhanced. https://balat.kikirpa.be/copyright/copyright_en-GB.php
National Museum Denmark, Digitally Enhanced. https://creativecommons.org/licenses/by/4.0/
National Museum in Brukenthal, Digitally Enhanced. https://creativecommons.org/licenses/by/4.0/
National Museum Denmark, Digitally Enhanced. https://creativecommons.org/licenses/by/4.0/
Bavarian Painting Collections, Digitally Enhanced. https://creativecommons.org/licenses/by/4.0/
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Vänersborgs Museum via DigitaltMuseum, Digitally Enhanced. https://creativecommons.org/licenses/by/4.0/
Cultural Heritage Agency of the Netherlands. Document No. Interbellum 0410, Attribution by Creative Commons http://creativecommons.org/licenses/by-sa/3.0/ Digitally Enhanced.
Skansen Museum via DigitaltMuseum, Digitally Enhanced. https://creativecommons.org/licenses/by/4.0/
Wien Museum Online Sammlung, Digitally Enhanced. https://creativecommons.org/licenses/by/4.0/
Tattarescu Memorial Museum, Digitally Enhanced. https://creativecommons.org/licenses/by/4.0/
Christian Art Monthly Magazine
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Musées de Reims, Purchased by Public Subscription, Digitally Enhanced, Creative Commons License https://creativecommons.org/licenses/by-sa/2.0/
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Sörmlands Museum, Digitally Enhanced
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