He is stated to be the son of the painter pittore Pero o Piero di Castellano da Gerfalco, documented as part of a guild by 1363, but dead by 1370.
With Cristoforo he signed now fragmentary frescoes in the cappella delle Reliquie of Santa Maria della Scala (1370).
They putatively painted frescoes depicting Life of St Francis for the apse chapel of San Francesco in Pienza.
In 1393, they were paid, along with Bartolo di Fredi, for the restoration of the Mappamondo by Ambrogio Lorenzetti in the palazzo pubblico of Siena.
[4] Frescoes in the Sala di Aristotele of the Museo Civico Archeologico e d'Arte Sacra at Palazzo Corboli of Asciano are attributed to the couple.