
AI Uncovers Hidden Secret in Raphael’s ‘Madonna della Rosa’: Was St. Joseph Painted by Another Artist?
A fascinating intersection of art history and artificial intelligence is rewriting the story of Raphael's renowned masterpiece, 'Madonna della Rosa.' For centuries, art scholars have debated the authenticity of certain sections of the painting. Now, AI analysis suggests that the face of St. Joseph might not have been painted by Raphael himself, potentially altering our understanding of how this iconic work was created.
The 'Madonna della Rosa,' also known as the 'Madonna of the Rose,' depicts the Madonna, the Child Jesus, St. John, and St. Joseph. While the artistry of the Madonna, Child, and St. John has generally been attributed to Raphael without question, St. Joseph's face has long been a subject of debate. Some critics have felt it to be less refined or inconsistent with Raphael's typical style. Now, AI is providing compelling evidence to support these suspicions.

Researchers from the UK and the US developed a custom AI algorithm trained on authenticated Raphael paintings. The algorithm, utilizing deep feature analysis and a modified version of Microsoft's ResNet50, learned to recognize subtle details such as brushstrokes, color palettes, and shading techniques unique to Raphael's work. This AI has achieved an impressive 98% accuracy in identifying genuine Raphael paintings.
"Using deep feature analysis, we used pictures of authenticated Raphael paintings to train the computer to recognize his style to a very detailed degree, from the brushstrokes, the color palette, the shading and every aspect of the work," explained mathematician and computer scientist Hassan Ugail from the University of Bradford. "The computer sees far more deeply than the human eye, to microscopic level."
Instead of analyzing the painting as a whole, the researchers focused on individual faces within 'Madonna della Rosa.' When the AI scrutinized the Madonna, Child, and St. John, it confirmed their creation by Raphael. However, the analysis of St. Joseph's face yielded a different result. The AI indicated that it was likely painted by someone else, potentially one of Raphael's pupils, such as Giulio Romano.

The 'Madonna della Rosa' was painted between 1518 and 1520, a period when Raphael frequently collaborated with assistants in his studio. Given that Raphael died in 1520, it's plausible that another artist completed or touched up certain parts of the painting.
While the AI's findings are significant, researchers emphasize that AI's role is to assist human expertise, not replace it. Authentication of artwork requires comprehensive evaluation of provenance, pigments, condition, and other factors. AI serves as a valuable tool in this process, offering a microscopic level of analysis that can reveal hidden details to uncover a masterpiece's deepest hidden secrets.
The research published in Heritage Science opens up new avenues for art historical investigation. Could AI help uncover similar hidden details in other famous paintings? Could works attributed to a single artist actually be the result of collaboration? The possibilities are exciting, and AI might just redefine how we perceive the works of old masters.
What are your thoughts on AI's role in art history? Do you think AI can add to or detract from the artistic merit and value of a painting? Leave your comments below and share your perspective!