In 1260, the mouth of the River Trumpe in Lake Durbe served as the battlefield in a battle between the combined German Order troops with Couronians and Estonians on one side and Samogitians on the other side. Soon after the battle went off, Couronians and Estonians left it. Samogitians completely defeated the German Order, killing both the Order Master Burkhard of Hornhausen and about 150 knights. Following the Battle of Durbe, the Order had to conquer Kurzeme (Courland) once again. A memorial stone at the top of the hillfort reminds of one of the biggest battles in local history.