Why is it difficult for scholars to identify genuine works by Rembrandt?

Identifying genuine works by Rembrandt is challenging for scholars primarily due to the common workshop practices of the 17th century. Rembrandt’s pupils were trained to imitate his style, producing works that were often indistinguishable from his own because they utilized the same materials and procedures.12

Several factors contribute to this ongoing difficulty:

• Workshop Production: Many works traditionally attributed to Rembrandt were actually created by his students. Because these school works were so close to his personal style, they were often misidentified or even intentionally "upgraded" to be sold as genuine Rembrandts.12
• Scarcity of Documentation: Very few of Rembrandt’s works are conclusively documented, and contemporary written evidence—such as business letters—is extremely rare, leaving scholars to rely on speculation.1
• Physical Condition: Many surviving paintings have been altered over time, including darkening, format changes, or overly drastic restoration, which obscures the original hand of the artist.1
• Methodological Limitations: Early attempts to use scientific methods (such as dendrochronology or X-rays) were initially expected to solve attribution issues. However, because workshop members used identical materials, these methods often highlighted the complexity of studio activity rather than isolating Rembrandt’s individual work.2

Consequently, scholars have shifted toward a multidisciplinary approach, combining technical analysis with traditional connoisseurship to better understand his oeuvre.12