Princess Rosa Cosette D'Elise is a member of the Erusean royal family. Further information, including the Princess's role in the Osea-Erusea Conflict, is not yet known.
During Erusea's conflict with the Osean Federation, Princess D'Elise publicly denounced Osea's actions, claiming that the country attacks indiscriminately and has injured many civilians.
- Princess D'Elise's name has French origins. In particular, her middle name, "Cossette", is an alternate spelling of "Cosette", best known as the name of the heroine in Les Misérables.
- ↑ 1.0 1.1 File:Ace Combat 7 Skies Unknown - E3 2017 Trailer.