Saint Michael Battling Lucifer
Gerard David - Altarpiece of St Michael, oil on wood. "The picture representing the battle of St Michael with the Diable is the central panel of a small triptych. On the side panels St Jerome and St Anthony of Padua can be seen in a contiguous landscape as a background." - quote source
Master of the Legend of St Ursula - St Michael Fighting Demons, oil on oak panel, 1480 - 1500.
Juan de Flandes - Saint Michael and Francis, Tempera and oil on wood, 1505-09.
Hans Leu The Elder - Michael Battling Lucifer (1500)
Albrecht Dürer - St Michael Fighting the Dragon, woodcut, 1496/98.
Raffaello Sanzio - St Michael and the Dragon, oil on wood, 1505. Painting previously mentioned here.
Claude Duflos - Copy of Raffaello's painting from above, engraving from 17th - 18th century.
Pacino di Bonaguida - The Apparition of Saint Michael, 1330.
Lieven van Lathem - Saint Michael - Tempera colors, gold leaf, gold paint, and silver paint on parchment, 1469.
Juan de la Abadia - The Archangel Michael, paint on wood, 1490. This is probably the creepiest interpretation of satan that I've ever seen, something about the small puppet like demon running around with bird feet. That one is going to give me nightmares!
Saint Michael is like the Van Helsing of the middle ages, anywhere you see him turn up he's usually kicking monster ass. More examples of Saint Michael slicing, dicing, dropkicking, face smashing and sucker punching the devil can be found here.