Paul George Konody,
1911 Encyclopædia Britannica, Volume 10…
(1911)
“ In fact the whole edifice that modern scientific criticism has built around his name is based on a single signed and dated picture (1487) in the Pinacoteca of Perugia—a niche with lunette, two wings and predella—and on the documentary evidence that he was decemvir of that city in 1472, in which year he entered into a contract to paint an altarpiece for Santa Maria Nuova—the pentatych of the “Madonna and Saints” now in the Pinacoteca. ”
