Verdi's masterpiece Otello is a six-letter opera based on William Shakespeare's play of the same name. AIDA is a four-letter opera set in Egypt and is one of Verdi's most popular works. Il Trovatore is an eleven-letter opera that tells the story of a family feud and is considered to be one of Verdi's greatest works. All three of these operas are considered to be masterpieces by the Italian composer Giuseppe Verdi.