(first quarter of 14th century)

Castle on a Hill

Palazzo Pubblico, Siena

During restoration work in 1979-80 in the Sala del Mappamondo of the Palazzo Pubblico in Siena, a new fresco was discovered below the imposing Guidoriccio da Fogliano by Simone Martini, representing a castle on a hill and two people in the foreground. The attempt to discover the identity of the unknown author of this work has given rise to much controversy among critics. Duccio, Pietro Lorenzetti, Memmo di Filippuccio, Simone Martini were suggested. The fresco, of outstanding executive quality both in skilful choice of descriptive detail and in its overall coherence, was badly damaged by the Mappamondo, a large, revolving, circular painting by Ambrogio Lorenzetti, which was placed on top of it in 1345.