In 1389, Pietro di Puccio, an artist from Orvieto, receives the commission by Parasone Grasso, head of the Opera del Duomo (1384-90), to paint the first murals in the north gallery. Over the next two years Puccio works on a depiction of the Christian macrocosm and three pictures of a Genesis cycle. He leaves this project unfinished when he returns to Orvieto in 1391.