Abstract
Niccolò Severini, the Sienese ambassador to the court of King Alfonso I of Naples, speaks in a letter to Cristoforo Felici, the chief architect of Siena cathedral, of Andrea dell'Aquila in flattering terms as “singolare pittore e anche scultore.” The letter written in Naples is dated June 9, 1458, two weeks before King Alfonso died (June 27). As the Italian text is not easily accessible to English readers, it seems advisable to translate it below, also for information it gives about Donatello.1