https://www.sothebys.com/en/auctions/ecatalogue/2011/old-master-19th-century-european-art-n08715/lot.7.html
(#7) Circle of Guido di Pietro or Fra Giovanni da Fiesole, called Fra Angelico
fra giovanni da fiesoleguido di pietro
https://www.davidrumsey.com/amica/amico734630-12147.html
Guido di Pietro / Virgin and Child Entroned with Saints Peter, Paul and George (?), Four Angels,...
Guido di Pietro / Virgin and Child Entroned with Saints Peter, Paul and George (?), Four Angels, and a Donor / 1446-49
guido di pietro