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.
Tantalus Tantalus (Ancient Greek: Τάνταλος , "Tántalos") was a Greek mythological figure, most famous for his eternal punishment in Tartarus. He was made to stand in a pool of water beneath a fruit tree with low branches, with the fruit ever eluding his grasp, and the water always receding before he could take a drink. He was the father of Pelops, Niobe and Broteas, and was a son of Zeus and the nymph Plouto. Thus, like other heroes in Greek mythology such as Theseus and the Dioskouroi, Tantalus had both a hidden, divine parent and a mortal one.