X-Radiograph Description: Negative Burroughs Number: 1837 X-Radiograph(s) of: Artist: Marzal de Sas, Andres, German, active ca.1393-1410 Artist: Also att. to French School Artist: Also att. to Spanish School Title: Death of the Virgin Date: ca. 1400 Owner: Philadelphia Museum of Art (Johnson Collection), PA Object Number: 757