Original: Two other important biographies were written by the king's confessor, Geoffrey of Beaulieu, and his chaplain, William of Chartres.
Simplified: Two other important biographies were written by the king's confessor, Geoffrey of Beaulieu, and his chaplain, William of Chartres. While several other people wrote biographies about the king, only Jean de Joinville, Geoffrey of Beaulieu, and William of Chartres had reliable information.