Painter of Borgo San Sepulcro, 1410/20 - 1492

	"He also did many works in Perugia that can still be seen today. For example, in the Church of the nuns of St Anthony of Padua he painted a panel in tempera showing Our Lady with the Child in her lap, St Francis, St Elizabeth, St John the Baptist, and St Anthony of Padua." I-196 Madonna and Child with Saints, Perugia
	"Above it is a very fine Annunciation with an angel who really seems to have come straight from heaven and, in addition, a beautifully painted row of columns diminishing in perspective." I-196 Madonna and Child with Saints (detail)
	"Piero made an intense study of painting and perspective. He acquired an intimate knowledge of Euclid, understanding better than any other geometrician the nature of the perfect curves drawn on a basis of regular bodies; and the clearest elucidations of these matters come from his pen." I-196 From 'De Prospectiva pingendi'
	From 'De Prospectiva pingendi'
	"Piero Lorentino d'Angelo of Arezzo was a pupil of his who imitated his style in the many pictures he did in Arezzo..He did [a] picture for Santa Maria delle Grazie showing Pope Sixtus IV standing between the cardinal of Mantua and Cardinal Piccolomini (afterwards Pius III) and granting an indulgence to that place." I-196 Pope Sixtus IV by Lorentino, Arezzo