 The "Mona Lisa" has had many different decorative frames in its history, owing to changes in taste over the centuries.In 1909, the art collector Comtesse de Béhague gave the portrait its current frame, a Renaissance-era work consistent with the historical period of the "Mona Lisa".The edges of the painting have been trimmed at least once in its history to fit the picture into various frames, but no part of the original paint layer has been trimmed.