Sistine Chapel no work for a papal chapel but rather for the public baths and taverns." In response Michelangelo worked da Cesena's semblance into the scene as Minos, judge of the underworld. It is said that when he complained to the Pope, the pontiff responded that his jurisdiction did not extend to hell, so the portrait would have to remain. Michelangelo also painted his own portrait, on the flayed skin held by St Bartholomew. The genitalia in the fresco were later covered by the artist Daniele da Volterra, whom history remembers by the derogatory nickname "Il Braghettone" ("the breeches-painter"). The Sistine Chapel's
Restoration of the Sistine Chapel frescoes have been predicted by previous restorers. One of the major dangers to the frescoes is automotive exhaust, and they are also vulnerable to the effects of the crowds of tourists that pass through the chapel every day, bringing with them heat, humidity, dust and bacteria (the latter of which can biodegrade paints and pigments). The clean plaster surfaces are more in danger from these destructive elements than they were when they were covered with a layer of smoky wax. Previously, the Sistine Chapel's only ventilation was from its windows in the upper level of the walls. To prevent exhaust fumes