 Based on the terms of the accord, Jogaila agreed not to intervene during attacks by the Teutonic Knights against Kęstutis or his children.However, if it was necessary to help to avoid any suspicions, it would not be a violation of the treaty.Historians noted that the treaty was somewhat superfluous as Jogaila's lands were protected by the ten-year Truce of Trakai, signed in 1379.