Bruno, Duke of Saxony was a member of the Ottonian dynasty who ruled as the Duke of Saxony from 866 until 880. As the son of Count Liudolf and Oda, he held significant power within East Francia. He served as a military commander during the Viking invasions, leading Saxon forces against Norse warriors. His life ended during the Battle of Lüneburg Heath, where he was killed alongside several other noblemen and bishops. He is remembered as one of the Ebsdorf Martyrs and is honored as a saint in the Catholic tradition.