The theory of the Sijena expert who wanted to claim a Prado painting is failing. Culture | 06/08/2025
!['The Nativity' from the main altarpiece of the Sijena Monastery](data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 9"%3E%3C/svg%3E)