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")
Castor et Pollux the loss of her lover Castor, and culminating in Telaire's lament aria "Tristes apprets". Dill notes that in contrast, the 1754 version begins with much more background behind the story of Telaire's love for Castor and depicts his death at the end. The events in Act I of the 1737 version appear in Act II of the 1754 version. Dill claims that Voltaire was more interested in music than action in opera. Moreover, Dill notes a difference in the plots between in the two versions. In the 1737 version, the main concern is for the moral dilemma between love and