Chrysaor

"I should have been the most famous hero of all time! Since the legend-tellers decided to ignore me, I became a villain instead. I resolved to put my heritage to use. As the son of Medusa, I would inspire terror. As the son of Poseidon, I would rule the seas!"

- Chrysaor Chrysaor (in Ancient Greek: Χρυσάωρ) is the brother of Pegasus, and a son of Poseidon and Medusa. Chrysaor and Pegasus were not born until Perseus chopped off Medusa's head. Chrysaor had one son, Geryon, from Callirrhoe, daughter of Oceanus, Titan of the sea.

History
Medusa, the most beautiful of the Gorgon sisters, and the only mortal one, offended Athena by having relations with Poseidon in one of Athena's sacred temples. Chrysaor and Pegasus were said to be born from the drops of Medusa's blood which fell in the sea; others say that they sprang from Medusa's neck as Perseus beheaded her, a "higher" birth (such as the birth of Athena from the head of Zeus).

Chrysaor, married to Callirrhoe, daughter of Oceanus, and was father to the triple-headed Geryon, but Geryon was killed by the great strength of Heracles at Erytheis beside his own shambling cattle on that day when Heracles drove the cattle toward Tiryns, when he crossed the stream of Oceanos and had killed Orthus and the oxherd Eurytion out in the gloomy meadow beyond Oceanos.

The Last Olympian
Gus, a son of Hermes, stole a pair of fuzzy dice from Chrysaor's Honda Civic in 1988, which are located in the Big House attic.

The Mark of Athena
Chrysaor and his crew attack the Argo II in the Mediterranean Sea to pillage and loot. They intend to sell Piper McLean and Hazel Levesque to Circe, kill Jason Grace, and then give Annabeth Chase and Percy Jackson to Gaea. He thinks he will sell Coach Hedge to some Cyclopes. Chrysaor also appears to think that Annabeth is pretty as he calls her "lovely" a number of times. Chrysaor battles Percy on the deck of the Argo II. Percy is unable to defeat him alone, but once his crew abandon him because Frank Zhang shape-shifts into a dolphin from the mighty power of Dionysus. Percy and the other demigods surround him. Chrysaor is knocked off the ship by Frank Zhang, in the form of an eight-hundred-pound grizzly bear, into the sea. Percy decides not to follow him since he does not know the waters and Chrysaor would be too powerful to battle alone.

Appearance
He wears a golden gorgon mask on his face, with curved tusks, horrible features and curly golden snake hair. He is dressed in full Greek combat armor with a Greek sword made out of Imperial Gold. His facial features are unknown, but it can be assumed there is something he wants to hide. When his mask is ripped from his head, he immediately covers his face.

Trivia

 * Chrysaor is the first (chronological) known user of an Imperial Gold weapon; he states that when he first began using it, it was called "enchanted gold."
 * In the myth, Chrysaor was described as a flying boar.
 * He is nicknamed "Golden Boy" by Ephialtes, who it is assumed does not like him.