Apollonia von Braunschweig-Lüneburg (1499-1571) (1499–1571) Parents Henry the Middle, Duke of Brunswick-Lüneburg Margaret of Saxony, Duchess of Brunswick-Lüneburg Children Siblings Anne von Braunschweig-Lüneburg Otto I, Duke of Brunswick-Harburg Ernest I, Duke of Brunswick-Lüneburg Anna of Brunswick-Lüneburg Francis, Duke of Gifhorn Elisabeth of Brunswick-Lüneburg, Duchess of Guelders