Wikidata:WikiProject sum of all paintings/Owners - Wikidata
Portrait of a Woman - Wikidata
Max von Oppenheim - Wikidata
Wikidata:WikiProject sum of all paintings/Creator/Frans Hals - Wikidata
Wikidata:WikiProject sum of all paintings/Creator/Nicolaes Pieterszoon Berchem - Wikidata
Marcel Duchamp
File:Thomas de Keyser - Portrait of a seated man gri 33125008330207 0202.jpg - Wikimedia Commons
File:Rembrandt Saul and David.jpg - Wikipedia
OMNIA - Leopold
Wikidata:WikiProject sum of all paintings/Catalog/Exposition des primitifs flamands à Bruges - Wikidata
File:Artist(s) Unknown, possibly Master of the Madonna Grog or Aert van den Bossche, formerly Master of the Embroidered Foliage - Virgin and Child in a Landscape - 90.7 - Minneapolis Institute of Arts.jpg - Wikipedia
Portrait of a Man with an Arrow - Wikidata
Felix Mendelssohn – Child Prodigy of the Romantic Era
Oppenheim - Wikipedia