Elisabeth of Saxe-Lauenburg (1274 - 1306) Parents Ingeborg Birgersdotter of Bjelbo John I, Duke of Saxony Children Eric II, Duke of Schleswig Siblings Helena of Saxe-Lauenburg John II, Duke of Saxe-Lauenburg Albert III, Duke of Saxe-Lauenburg Eric I, Duke of Saxe-Lauenburg Partners Valdemar IV, Duke of Schleswig