Ambrogio Lorenzetti

Ambrogio Lorenzetti was active as a painter in Siena from approximately 1317 to 1348, working in the shadow and company of his elder brother Pietro, also a painter. Somewhere in that span he was commissioned to decorate the Sala dei Nove in Siena's Palazzo Pubblico, the council room where the city's governors met. The result was The Allegory of Good and Bad Government, a fresco cycle that visualized political philosophy on the walls where policy was made. He continued working until at least August 1348, after which the record goes silent.