Herodias was enraged with John the Baptist for preaching against her marriage to Herod, the brother of her first husband. According to the New Testament, she instructed her daughter Salome to ask Herod for the Baptist's head as a reward for her dancing. A text by Saint Jerome recounts that when Herodias received the severed head, she pierced the Baptist's tongue with a needle. In this painting, Cairo made the macabre subject even more disturbing through dramatic lighting and the vivid realism with which he portrayed Herodias swooning in ecstasy as she mutilates the tongue that spoke against her.