It was painted with a semi-naked maiden wearing a crown of camomile and cornflowers and surrounded by grapes, melons, peaches and a pineapple. Like all the other lots in the auction, the 17 x 12in (43 x 31cm) panel, which was mounted in large gilt wooden frame, was offered without reserve.
Furious bidding ensued, which closed only when a Japanese dealer sealed the deal in Heidelberg at €28,000 (£24,135).
A corresponding plaque of identical size, painted with the Sistine Madonna after Raphael, was also in demand. It changed hands for €16,000 (£13,790).
The sale took place on June 18-19.