In Greek mythology, Pyrrhus is the grandson of what immortal nereid?
Pyrrhus (Royer) Pyrrhus is an opera by the French composer Joseph-Nicolas-Pancrace Royer, first performed at the Académie Royale de Musique (the Paris Opera) on 26 October 1730. It takes the form of a "tragédie en musique" in a prologue and five acts. The libretto, by Fermelhuis, is based on the Greek myth of Pyrrhus, son of Achilles.
Aethalides Aethalides (Ancient Greek: Αἰθαλίδης ) was a son of Hermes and Eupolemeia, a daughter of Myrmidon. He was the herald of the Argonauts, and had received from his father the faculty of remembering everything, even in Hades. He was further allowed to reside alternately in the upper and in the lower world. As his soul could not forget anything even after death, it remembered that from the body of Aethalides it had successively migrated into those of Euphorbus, Hermotimus, Pyrrhus, and at last into that of Pythagoras, in whom it still retained the recollection of its former migrations.