Antinous was one of Penelope's suitors in the Odyssey. He was killed with an arrow to the neck by Odysseus. He appears in The Blood of Olympus.

The Heroes of Olympus

The Blood of Olympus

Jason Grace, Piper McLean, and Annabeth Chase meet Antinous and the other suitors when they go to Ithaca. As in the Odyssey, he is leading the suitors in their revelries believing Jason to be Iros; messenger of the suitors. Antinous introduces him to the other suitors of Gaea, among them Hippias, Hasdrubal, and Michael Varus.