Label TextSaint Donatus was a ninth century Irish monk who left his homeland on a pilgrimage to Rome. On his way back, he arrived at the Italian town of Fiesole, where a new bishop was being sought. As soon as Donatus entered the cathedral, the bells rang, the lamps were lit, and he was proclaimed bishop of Fiesole. Apart from his ecclesiastical duties, Donatus also led the regions troops against Saracen invaders and obtained the right to his own court and to levy taxes. In addition, Donatus was a scholar and teacher, and his works include a life of Saint Brigid, in whose name he also founded a hospice.
Martino di Bartolomeo was an important Sienese painter whose style reflects Byzantine influence while prefiguring the naturalism of the early Renaissance. He depicts Donatus as a bishop saint wearing a mitre, chasuble, ecclesiastical gloves and holding a crozier. Bartolommeo was the son of a goldsmith and his frescoes adorn cathedrals and churches in Siena and Pisa.