Eric I, Duke of Saxe-Lauenburg German duke (1280–1359) Parents Ingeborg Birgersdotter of Bjelbo John I, Duke of Saxony Children Eric II, Duke of Saxe-Lauenburg Jan I Helene, Herzogin von Sachsen-Lauenburg Siblings Helena of Saxe-Lauenburg Albert III, Duke of Saxe-Lauenburg John II, Duke of Saxe-Lauenburg Elisabeth von Sachsen-Lauenburg Partners Elisabeth of Pomerania
