text: In his early youth, Frederick lived with his mother and sister Wilhelmine, although they regularly visited their father's hunting lodge at Königs Wusterhausen. Frederick and his older sister formed a close relationship, which lasted until her death in 1758. Frederick and his sisters were brought up by a Huguenot governess and tutor and learned French and German simultaneously. Undeterred by his father's desire that his education be entirely religious and pragmatic, the young Frederick developed a preference for music, literature, and French culture. Frederick Wilhelm thought these interests were effeminate, as they clashed with his militarism, resulting in his frequent beating and humiliation of Frederick. Nevertheless, Frederick, with the help of his tutor in Latin, Jacques Duhan, procured a 3,000-volume secret library of poetry, Greek and Roman classics, and philosophy to supplement his official lessons.
  Frederick William I had been raised a Calvinist in spite of the Lutheran state faith in Prussia, but feared he was not one of God's elect. To avoid the possibility of his son Frederick being motivated by the same concerns, the king ordered that his heir not be taught about predestination. Despite his father's intention, Frederick appeared to have adopted a sense of predestination for himself.