Castor and Pollux Castor and Pollux Castor and Pollux (or in Greek, Polydeuces) were twin half-brothers in Greek and Roman mythology, known together as the Dioscuri. Their mother was Leda, but they had different fathers; Castor was the mortal son of Tyndareus, the king of Sparta, while Pollux was the divine son of Zeus, who seduced Leda in the guise of a swan. Though accounts of their birth are varied, they are sometimes said to have been born from an egg, along with their twin sisters Helen of Troy and Clytemnestra. In Latin the twins are also known as the Gemini (literally "twins")
Europa (consort of Zeus) (by this case, niece of former) is also loved by Zeus, but because of the same name, gave some confusions to others. After arriving in Crete, Europa had three sons fathered by Zeus: Minos, Rhadamanthus, and Sarpedon, the three of whom became the three judges of the Underworld when they died. In Crete she married Asterion also rendered Asterius and became mother (or step-mother) of his daughter Crete. There were two competing myths relating how Europa came into the Hellenic world, but they agreed that she came to Crete (Kríti), where the sacred bull was paramount. In the more familiar