This hillfort is found in a beautiful place on the banks of the Venta River. It boasts a nice viewing platform which offers and broad and breath-taking view of the upper and lower reaches of the river. Three curves of the river can be spotted. The area where the castle was located was first populated during the first half of the first millennium. Judging from artifacts found here in the early 20th century, there was an ancient burial ground. Those who were buried there can be identified as members of a particular Baltic Sea Finnish group. It may be that they were Vendians, who were mentioned in the Livonian Chronicle of Indriķis. This ancient tribe might also have populated the Lagzdiena hillfort and had Scandinavian travellers visiting it because of its strategic location.