Overview
- The provenance researcher Willi Korte uncovered Basel public archive records that show Gustav Schweitzer loaned the 1888 Cézanne watercolour to a Kunsthalle Basel exhibition in 1936 and that correspondence about the work continued through 1939.
- Korte and Schweitzer’s heir argue the paperwork suggests the painting was either sold under duress after Schweitzer fled or taken in Nazi-occupied territory, though the exact path out of the family’s possession remains unproven.
- The Fondation Beyeler has told the lender it will be informed of the claim and said it will return the loaned work, stressing Swiss museums lack legal authority to retain privately loaned pieces without a legal basis.
- The watercolour’s lender is listed only as an unnamed private collector in the exhibition catalogue and the Cezanne catalogue raisonné indicates the current owner is US-based, which raises legal, market and reputational questions for that holder.
- Experts urge the museum to mediate between Schweitzer’s sole heir and the current owner and recommend seeking a negotiated remedy or compensation if a persecution-linked loss is confirmed, building on renewed Swiss research into Nazi-era dispossessions that began after 2024 investigations.