The Master of the Osservanza Triptych, also known as the Osservanza Master and as the Master of Osservanza, is the name given to an Italian painter of the Sienese school active about 1430 to 1450.
2e quart du XVe siècle (1425 - 1450) · 卢浮宫博物馆
1e moitié du XVe siècle (vers 1430 - 1440) · 卢浮宫博物馆
c. 1440 · 国家美术馆
2e quart 15e siècle · 斯特拉斯堡美術館
