Polydeuces

Portrait of Polydeuces from Greek mythology

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Champion boxer, son of Zeus and twin of Castor. He shared his immortality with his brother so they would never be parted.

Roman name: Pollux
From Sparta. Today: Sparti, Greece.
Strength 8/10 · Wisdom 6/10 · Courage 8/10 · Divinity 5/10 · Fame 6/10

The story

Castor‘s twin, the immortal son of Zeus, a champion boxer. On the Argonauts’ voyage he defeated the brutal boxing king Amycus, who challenged every stranger who landed.

How it ends

When Castor died, Polydeuces refused immortality without him. Zeus let the twins share it, alternating between heaven and the Underworld.

Still with us today

The Romans called him Pollux, the name of the brightest star in Gemini.

Family

Appears in

Jason and the Argonauts, The Trojan War

Read about them in the Library

Ancient sources

  • Apollonius of Rhodes, Argonautica
  • Homer, Iliad

In the sky and in space

  • MoonHelene and Polydeuces

    Two tiny moons that share the orbit of Saturn's moon Dione, one in front and one behind. Helene and her brother Polydeuces are together in the sky as well.

  • ConstellationGemini

    The twins Castor and Polydeuces, whose two brightest stars still carry their names, Castor and Pollux.

  • StarsCastor and Pollux

    The two bright stars of Gemini, named after the twins. Sailors believed the twins protected them, and saw them in the eerie glow of St Elmo's fire on ships' masts.

  • Space missionProject Gemini

    NASA's two-person spacecraft of the 1960s, named after the twins because every crew had two astronauts.

Explore all the myths in the sky