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.
Chrysaor In Greek mythology, Chrysaor (Greek: Χρυσάωρ, "Chrysáor" , "gen".: Χρυσάορος, "Chrysáoros"; English translation: "He who has a golden sword" (from χρυσός, "golden" and ἄορ, "sword")), the brother of the winged horse Pegasus, was often depicted as a young man, the son of Poseidon and the Gorgon Medusa. Chrysaor and Pegasus were not born until Perseus chopped off Medusa's head.