A Legacy of Sienese Devotion In the vibrant heart of the Sienese School, Andrea di Bartolo emerged as a master whose brush captured the profound spiritual intensity of his era. As the son and pupil of the prominent painter Bartolo di Fredi, Andrea’s artistic journey was deeply rooted in the traditions of his father's workshop. His early years were spent immersed in the prestigious orders that flowed through his family's studio, a peri…