 Claude was raised alongside her sister Elisabeth, and her future sister-in-law, Mary, Queen of Scots.The royal children were raised under the supervision of the governor and governess of the royal children, Jean d'Humières and his wife Françoise d'Humières, under the orders of Diane de Poitiers.Claude was victim of the unhealthy traits that Catherine appeared to pass on to all her children with the exception of Marguerite, and suffered from a hunchback and a club foot, and during her childhood she was frequently vulnerable to various child diseases.