Bartolo di Fredi
Painter
(active Siena, Italy, 1353 - 1410, Siena, Italy)
ULAN note: Bartolo had a large shop and a very long career, and was one of the most influential painters working in Siena and the surrounding towns in the second half of the Trecento. First documented in 1353, when he leased a workshop with Andrea Vanni. His style is marked by the rejection of the concrete figures and naturalism begun by the Lorenzetti to instead favor the flatter, decorative, otherworldly compositions of the earlier Simone Martini and Duccio, which he combined with a new spirit of fantasy and anecdotal details. It has been suggested that he was also an architect, producing a drawing for a chapel in Siena. He died 26 January 1410 (1409 Sienese style).
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Some information from Getty's Union List of Artist Names ® (ULAN)