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")
Leda and the Swan (Peter Paul Rubens) she is most known for giving birth to Clytemnestra, Helen, Pollux, and Castor. The most common myth claims that Zeus transformed himself into a swan to couple with Leda. Some versions claim that she loved Zeus and willing had sexual relations with him, while other versions claim she was seduced and therefore was not willing. That same night, she coupled with Tyndareus also. Leda then gave birth to four children at the same time. The two pairs of twins resulted in Helen and Pollux belonging to Zeus, and Clytemnestra and Castor belonging to Tyndareus. Though each pair is attributed to