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Neoptolemus
No, Neoptolemus was still alive at the time that Ulysses spoke to the spirits of Hades.
During and after the Trojan war, Neoptolemus killed Priam, Eurypylus, Polyxena, Polites and Astyanax, among others.
Priam
Achilles only had one child named Neoptolemus. Neoptolemus' mother was Deidamia who became pregnant by Achilles after discovering his true identity.