Art-historical research
Every painting hangs from a chain of owners. I trace the missing links.
Zido is het onderzoeksbureau van Sascha Ladenius, kunsthistoricus gespecialiseerd in herkomstonderzoek, materiële cultuur en de vroegmoderne periode. Opgeleid aan Universiteit Leiden en de Universiteit van Amsterdam, combineert zij academische diepgang met praktijkervaring in de kunstwereld.
For essays, exhibition reviews and other editorial work, see viconius.nl and Substack.

Zido offers research and consultancy; valuations and authenticity certificates fall outside its scope.
Research and consultancy
Explore a range of services that combine academic depth with practical expertise in the art world.

Provenance research
Reconstruction of the ownership history of artworks and objects, with particular attention to the period 1933–1945. For private clients, museums and the art trade.
Archival research
Targeted research in archives at home and abroad, from auction house records to private and institutional collections, for provenance files, publications or exhibitions.
Art-historical consultancy
Advice on attribution, context and cultural-historical significance, with a specialism in genre painting, fashion and textile history, decorative arts and the seventeenth-century interior.
