John IV, Duke of Bavaria Duke of Bavaria (1437–1463) Parents Anna of Brunswick-Grubenhagen-Einbeck Albert III, Duke of Bavaria Children Siblings Margaret of Bavaria, Marchioness of Mantua Sigismund, Duke of Bavaria Christoph the Strong Albert IV, Duke of Bavaria Elisabeth of Bavaria, Electress of Saxony Wolfgang von Bayern Barbara von Bayern Elisabeth von Honstein-Kletterberg Heinrich X von Honstein-Kletterberg Johann Neuhauser