Martin Schongauer was a Colmar painter and engraver who was much influenced by Roger van der Weyden and other Netherlandish painters. His only reasonably certain painting is the Madonna of the Rosehedge (1473: Colmar, St Martin), an over-life-size figure which shows the influence of the Flemish models. There are 115 engravings by him, all signed MS, and these were of great importance in the development of engraving in Germany: it is well known that Durer went to visit him, only to find that he had died.
Some fragments of a wall-painting of the Last Judgement have been discovered in St Stephan, Breiisach, where Schongauer lived from 1488/9. There are pictures ascribed to him in Basle, Berlin, Boston (Gardner), Colmar (Mus.), Frankfurt (Stadel), London (NG), Munich and Vienna.
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Source: The Penguin Dictionary of Art and Artists (Penguin Reference Books)