Inutiles regrets! ... je dois quitter Carthage

Whose song is Inutiles regrets! ... je dois quitter Carthage?

Artist Album
Berlioz
Les Troyens (Disc 4/4) Dutoit/Lakes/Voigt/Poliet
OSM, Charles Dutoit dir
Les Troyens (Berlioz) CD4 Acte 5