 Uccello was known to have been in Venice in 1427 and to have returned to Florence by 1431 , allowing a second window for historiographical speculation : some say he may have gone to Rome ; others say he went directly to Florence . Uccello probably painted the Creation of the Animals and Creation of Adam ( c . 1431 ) in the upper part of one of the bays of the <unk> Verde ( the " Green Cloister " ) in Santa Maria Novella , which — like the Hawkwood , as specified in its commission — is in the " terra verde " grisaille manner . Perhaps Uccello worked on the stories from the life of the Virgin and St. Stephen in the Chapel of Our Lady of the Assumption in the Prato Cathedral around 1435 , although Pope @-@ Hennessy , <unk> , and Salmi all dispute this attribution . 
