Wonderful page today! Paintings, mosaics, tapestries, sculptures, stained glass windows...always appreciated.
#4, from the splendid frescoes in San Gimignano Duomo by Bartolo di Fredi, one of the most popular masters in Siena in the second half of the fourteenth century. The flatter decorative compositions are reminiscent of the art of Simone Martini and Duccio di Buoninsegna.
I found Fredi's to be interesting, too.