Michelangelo' s sixteenth-century Sistine Chapel paintings are currently being restored  A goal of the restorers is to uncover Michelangelo' s original work, and so additions made to Michelangelo' s paintings by later artists are being removed
However, the restorers have decided to make one exception: to leave intact additions that were painted by da Volterra
Da Volterra's work is considered by certain art historians to be just as valuable as the work of some of the other artists who painted additions to Michelangelo's work.