lorenzetti (ambrogio) - Rofeno Abbey Poliptych. Saint Michael the Archangel slaying (1330 Fondazione Musei Senesi| Asciano| Palazzo Corboli Civic Archeological and Sacred Art Museum lorenzetti (ambrogio) - Rofeno Abbey Poliptych. Saint Michael the Archangel slaying (1330 Fondazione Musei Senesi| Asciano| Palazzo Corboli Civic Archeological and Sacred Art Museum