The second Bayernburg stood on the Lithuanian frontier for a few decades and was a base for further Teutonic raids into Lithuania. For example, in 1369, Teutonic soldiers took a supply of food for their campaign to reinforce Gotteswerder. Repeating this information German historian Caspar Schütz made an error by claiming that the fortress, known as Beyery, was controlled by Kęstutis. This confused note led some Lithuanian researchers to look for a Lithuanian fortress, known as Bairiai. Algirdas Makarevičius "found" it near the Nevėžis River north of Raudondvaris.