Won over by Alexios' offer of gold in return for aid against the Pechenegs, the Cumans hurried to join Alexios and his army. In the late spring of 1091, the Cuman forces arrived in Byzantine territory, and the combined army prepared to advance against the Pechenegs. On Monday, 28 April 1091, Alexios and his allies reached the Pecheneg camp at Levounion near the Maritsa River.