The name "Edler von Hartesberg" was first mentioned in the archbishop's records in 1100 AD, which means something like "forest mountain". Around the year 1330 AD, an unbelievable story happened that gave the House of Hardenberg a new coat of arms from then on. The legend tells that a wild boar warned the lords of a night attack by the neighboring Plesse knights. The loud grunting of the frightened animal shook the castle that night and woke up the sleeping Hardenbergers. Resolutely they plunged into battle, putting the daring attackers to flight. And while a key was initially the symbol of the Hardenbergs, from now on the boar's head adorned the coat of arms of the house. Since the Hardenberg distillery was founded in 1700, it has also been part of the company logo as a seal of quality.