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")
Tyndareus Tyndareus In Greek mythology, Tyndareus (; Ancient Greek: Τυνδάρεος, "Tundáreos"; Attic: Τυνδάρεως, "Tundáreōs"; ) was a Spartan king. Tyndareus was the son of Oebalus (or Perieres) and Gorgophone (or Bateia). He married the Aetolian princess, Leda by whom he became the father of Castor, Clytemnestra, Timandra, Phoebe and Philonoe, and the stepfather of Helen of Troy and Pollux. Tyndareus had a brother named Hippocoon, who seized power and exiled Tyndareus. He was reinstated by Heracles, who killed Hippocoon and his sons. Tyndareus’ other brother was Icarius, the father of Penelope. Tyndareus’ wife Leda was seduced by Zeus, who disguised himself