Queen Isabella (1370-1435); Collected Works of Christine de Pisan; France (Paris); 1410-1411. Christine de Pizan or Pisan (1364 ??c. 1430) was an Italian French late medieval author. She served as a court writer for several dukes (Louis of Orleans; Philip the Bold of Burgundy; and John the Fearless of Burgundy) and the French royal court during the reign of Charles VI. Isabeau of Bavaria (1370-1435) wife of Charles VI of France.