Question: Who wrote the opera first performed on 26 October 1786 at the medieval castle and subsequent palace which served as a residence for the French monarchs from Louis VII to Napoleon III?
Sentence (from "Phèdre (opera)"): The libretto, by François-Benoît Hoffman, is based on the Greek myth of the obsessive love of Phaedra for her stepson Hippolytus.
Relevant evidence: No