Khlepen
Khlepen stood on the Vazuza in the border country associated with the princes of Vyazma. By the later fifteenth century the town and its dependent districts belonged to Prince Mikhail Dmitrievich of Vyazma. Its position also drew competing claims from Moscow, which invoked the treaty of 1449 when arguing over the Khlepen lands.
During the frontier conflict of the late 1480s and early 1490s, forces serving Ivan the Young approached from Tver, plundered Khlepen and carried away captives. Nearby districts suffered burning and seizure of property. Lithuanian diplomatic complaints recorded these attacks, while subsequent disputes concerned occupation as well as raiding. Khlepen's history in this period therefore lay within a contested network of princely lands, where military action and negotiations over inherited rights worked together to shift the frontier between Lithuania and Moscow.