Its location was long debated and often confused with Pieštvė, but after 1985 research of Romas Batūra it has been generally accepted to be Kartupėnai Hillfort near the confluence of the Kartupis and Neman in Jurbarkas District Municipality, Lithuania.

[3] Chronicler Peter von Dusburg noted that the Teutonic Order finalized its conquest of Prussia and launched the Lithuanian Crusade in the winter of 1283.

[2] Teutonic soldiers, commanded by the Prussian Landmeister Konrad von Thierberg, crossed the frozen Neman River and rigorously attacked the Lithuanian fortress in the morning.

Dusburg noted that many Teutons were injured in the attacks and four brothers drowned in the Neman when frozen ice collapsed under their feet.

[2] Bisenė was manned by a Lithuanian garrison in one-month shifts, a weakness in security which was exploited by the Teutons.

[2] Historical sources did not provide a description of the fortress and no archaeological excavations were carried out on the Kartupėnai Hill Fort.

The northern and western edges of the hill collapsed into the Kartupis due to erosion making analysis more challenging.