After five years of examination, the Bosch Research and Conservation Project (BRCP) has determined that two masterpieces attributed to the Dutch artist Hieronymus Bosch were unlikely to have been painted by the master himself.

The results of the research indicate that Bosch's Christ Carrying the Cross (ca. 1515-16) and the world famous The Seven Deadly Sins (ca. 1500)— which hangs in Madrid's Prado Museum—were probably produced in the studio of the artist, but not painted by Bosch himself, the Dutch news agency ANP reports.