1338–1340: Ambrogio Lorenzetti paints The Allegory of Good and Bad Government frescoes in Palazzo Pubblico, Siena, Tuscany
1339: Italian painter and architect Taddeo Gaddi suffers a serious eye injury while studying solar eclipses
1330: Giovanni di Agostino sculpts a monument to Bishop Guido Tarlati
Births
1339: Don Silvestro dei Gherarducci – Italian painter (died 1399)
1335: André Beauneveu - Early Netherlandish sculptor and painter (died 1400)
1332: Wang Lü – Chinese landscape painter, calligrapher, and poet during the Ming Dynasty (died unknown)
1332: Andrea Vanni - Italian painter active mainly in his native Siena (died 1414)
1330: Jacopo del Casentino – Italian painter active mainly in Tuscany (died 1380)
1330: Bartolo di Fredi – Italian painter classified as a member of the Sienese School (died 1410)
1330: Vitale da Bologna – Italian painter, of the Early Renaissance (died 1361)
1330: Altichiero – Italian painter of the Gothic style (died 1390)
1330: Hermann von Münster - German master glassmaker (died 1392)
1330: Wang Yi – Chinese painter of human figures during the Yuan Dynasty (d. unknown)
1330: Luca di Tommè - Italian tempera painter (died 1389)
c.1330: Jean de Liège - French sculptor (died 1381)
Deaths
1339: Giovanni di Balduccio – Italian sculptor of the Medieval period (born 1290)
1337: Giotto di Bondone – Italian painter and architect from Florence (born 1267)
1337: Tino di Camaino – Italian sculptor (born 1280)
1330: Pietro Cavallini – Italian painter and mosaic designer working during the late Middle Ages (born 1250)
1330: Lorenzo Maitani – Italian architect and sculptor primarily responsible for the construction and decoration of the façade of Orvieto Cathedral (born 1255)