Aliases
An alias is an alternate name for an entity. They typically contain common misspellings or variations of the name and are also used to improve search results.
Ernani: Atto III. (no. 13c) Settimino “O sommo Carlo, più del tuo nome” (Carlo, Silva, Elvira, Ernani, Giovanna, Jago, Riccardo, Coro) has no aliases.