Engravings designed by Maerten van Heemskerck were used often enough by sixteenth-century painters of stained-glass panels, but the subject of Daniel and the Priests of Bel and the Dragon is preserved in only two panels known to me. The apocryphal story (Dan. 14:2-21) states that the Babylonians worshipped Bel, whose statue was given large quantities of edible offerings daily. The nightly disappearance of the food convinced King Cyrus that Bel was a living god, but the prophet Daniel proved that the priests of Bel in fact ate the offerings secretly. Daniel covered the temple floor with ashes and Cyrus sealed the doors. The next morning Daniel showed the king that the priests and their families had a secret passage under the altar because footprints led to it, and they and not Bel, therefore, had eaten the food.