Endymion was a mortal shepherd or astrologer, loved by Selene, the Titan goddess of the moon. She believed him to be so beautiful that she asked Endymion's father, Zeus, to grant him eternal youth so that he would never leave her. Zeus granted her wish and put him into an eternal sleep. Every night, Selene visited him where he slept. Selene and Endymion had fifty daughters called the Menae.