In Greek mythology, Pyrrhus is the grandson of what immortal nereid?
Achilles In Greek mythology, Achilles ( , ; ] ) was a Greek hero of the Trojan War and the central character and greatest warrior of Homer's "Iliad". His mother was the immortal nereid Thetis, and his father, the mortal Peleus, was the king of the Myrmidons.
Atreus In Greek mythology, Atreus ( , ;, from ἀ-, "no" and τρέω, "tremble", "fearless", Greek: Ἀτρεύς ) was a king of Mycenae in the Peloponnese, the son of Pelops and Hippodamia, and the father of Agamemnon and Menelaus. Collectively, his descendants are known as Atreidai or Atreidae.