Recorded in the Lira 389 account book of the Siena State Archive are repayments of loans made by the Commune of Siena between 1340 and 1342. This book provides new documentary evidence relating to Ambrogio Lorenzetti, the goldsmith Giacomo di Dino from Arezzo (whose presence in Siena was hitherto unknown) and some of the most important Sienese goldsmiths of the 14th century such as Ugolino di Vieri and Viva di Lando.
The document regarding Ambrogio might be evidence of a new payment made to the painter by the Commune, perhaps in connection with the “piue dipigniture” which Ambrogio is recorded to have painted in 1340. The documents on the goldsmiths shed a great deal of new light on their lives, mutual relationships, wealth and activity. Thanks to further new documentary evidence from other archival sources, the article traces a partial census of the goldsmiths active in Siena at the beginning of the 1340s and discusses their involvement in loaning and banking, as well as the connection between goldsmiths and bankers whose membership in the same guild is documented from 1355.