| 100% | OTELLO | 6 | Verdi opera based on Shakespeare |
| 91% | OTELLO | 6 | Verdi opera based on a Shakespeare play |
| 91% | OTELLO | 6 | Verdi opera based on a Shakespeare tragedy |
| 73% | ATTILA | 6 | Verdi opera based on a historic invader |
| 73% | OTELLO | 6 | Verdi opera based on a Shakespearean play |
| 70% | VERDI | 5 | He wrote several operas based on Shakespeare plays |
| 70% | OTELLO | 6 | Opera based on a Shakespeare play |
| 70% | ERNANI | 6 | 1844 Verdi opera based on a Victor Hugo play |
| 65% | ADO | 3 | "Much ___ About Nothing," 1901 opera based on the Shakespeare play |
| 65% | AIDA | 4 | Musical based on a Verdi opera |
| 63% | AIDA | 4 | Elton John musical based on a Verdi opera |
| 62% | RIGOLETTO | 9 | Verdi's opera based on a Victor Hugo play |
| 62% | AIDA | 4 | Elton John Broadway musical based on a Verdi opera |
| 61% | AIDA | 4 | Elton John/Tim Rice musical based on a Verdi opera |
| 55% | LULU | 4 | Opera based on two Wedekind plays |
| 54% | ELEKTRA | 7 | Strauss opera based on Sophocles |
| 53% | ATALANTA | 8 | Handel opera based on Greek myth |
| 53% | ARIANE | 6 | Massenet opera based on Greek myth |
| 52% | LESTROYENS | 10 | Berlioz opera based on Virgil's "Aeneid" |
| 52% | SAPHO | 5 | Massenet opera based on a Daudet novel |
| 52% | ARIANE | 6 | 1906 Massenet opera based on Greek myth |
| 52% | TROYENS | 7 | "Les ___" (Berlioz opera based on the "Aeneid") |
| 52% | ELEKTRA | 7 | Strauss opera based on a Sophocles tragedy |
| 52% | KISSME | 6 | __ Kate, Cole Porter musical based on Shakespeare |
| 51% | BARBEROFSEVILLE | 15 | Opera based on a play by Pierre Beaumarchais, with "The" |
| 51% | WERTHER | 7 | Massenet opera based on a work of Goethe |
| 51% | ROMEOMUSTDIE | 12 | *2000 Jet Li film loosely based on Shakespeare |
| 51% | ATTILA | 6 | Historical figure on whom a Verdi opera is based |
| 50% | RIENZI | 6 | Wagner opera based on a 14th-century Italian patriot |
| 50% | FALSTAFF | 8 | Verdi opera about Shakespeare's fat knight |