Originally posted by Kawaii Ryűkishi
Figaro comes from the opera The Marriage of Figaro.
Well, the name Figaro really derives from Beaumarchais's Figaro trilogy: The Barber of Seville, The Marriage of Figaro, and The Ghosts of Versailles. Interestingly enough, each play has been adapted into an opera, by Rossini, Mozart, and John Corigliano (if for no other reason than to be able to associate himself with the other two) respectively.