Leda and the Swan (Peter Paul Rubens) either Zeus or Tyndareus, each man is said to be the father of all four children. Castor and Pollux were called the Dioscuri meaning “Zeus’s sons,” even though Castor was mortal because he was the son of Tyndareus and Pollux was immortal because he was the son of Zeus. According to Hermes in Lucians’ "The Dialogues of the Dead", Leda and her daughter (Helen of Troy) are the only women worthy of the title “beauties of old.” Rubens’s depictions of Leda clearly embody the phrase. With Leda’s curvy figure, alabaster skin, and golden hair, she is a sight to behold.
Castor and Pollux was very ancient: a uniquely Spartan aniconic representation of the Tyndaridai was as two upright posts joined by a cross-bar; as the protectors of the Spartan army the "beam figure" or "dókana" was carried in front of the army on campaign. Sparta's unique dual kingship reflects the divine influence of the Dioscuri. When the Spartan army marched to war, one king remained behind at home, accompanied by one of the Twins. "In this way the real political order is secured in the realm of the Gods". Their "herōon" or grave-shrine was on a mountain top at Therapne across the Eurotas