 Other sources say he had a studio in Siena in "Compagnia di Rialto e Cartagine".He worked for Pope Pius II in 1460, for the diplomat Leonardo Benvoglienti, for the Ottieri della Ciaia family and for Sinolfo di Castellottieri.In 1455 the magistrates of Siena paid Alfei for work at Monte Argentario near Orbetello; works till recently attributed to Ambrogio Lorenzetti and to Sassetta.