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Francesco del Cossa . Artwork de Thronende Madonna Hl Petronius und Hl Evangelist Johannes de Tempera auf Holz cm de Bologna de Pinacoteca Nazionale de Urspr im Palazzo della Mercanzia nel Foro die Mercanti in Bologna Auftraggeber Richter Alberto de' Cattanei kniende Stifterfigur und Notar Domenico degli Amorini The Yorck Project