Julius Ernst, Duke of Brunswick-Dannenberg

Julius Ernest, Duke of Brunswick and Lunenburg (1571–1636), Prince of Dannenberg, was a son of Henry III, Duke of Brunswick-Lüneburg and Ursula of Saxe-Lauenburg. On his father's death in 1598 he inherited the Principality of Dannenberg. He died without male issue, and so the Dannenberg principality and his share of Hitzacker was inherited by his brother Augustus.