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Heiliger Gregor der Groe. Artwork Creator Meister von Mekirch LangSwitch Der Heiliger Gregor der Groe Saint Gregory the Great De heilige Gregorius de Grote Oil on panel cm Institution Yale University Art Gallery LangSwitch Ausstattung der ehemaligen Seitenaltre der Mekircher St Martinskirche Outer wing of an altarpiece from