The Dawn of a Sienese Master In the golden twilight of the Trecento, as the medieval world began to stir toward the light of the Renaissance, Taddeo di Bartolo emerged as a transformative force within the Sienese School. Born in Siena around 1362, Taddeo was not merely a painter but a bridge between eras, a master capable of weaving the delicate, lyrical elegance of the Gothic tradition with a burgeoning sense of structural depth and…