The National Institute of Art History (France) - license: Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/ Digitally Enhanced.
Christian Art: Monthly magazine for all areas of Christian art and art history as well as for the entire art world. 1905/1906, urn:nbn:de:bsz:16-diglit-531576, public domain.
Cultural Heritage Agency of the Netherlands, Document number
541.035, Digitally enhanced, licensed under Creative commons
http://creativecommons.org/licenses/by-sa/3.0/
The National Institute of Art History (France) - license: Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/ Digitally Enhanced.
kulturerbe.niedersachsen. Around 1525. Ricghts holder: Hanover State Museum. Licensed under (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/ Digitally enhanced.