Liège counted on the promised military support from King Louis XI of France, also at war with the new Burgundian Duke Charles the Bold.

They were commanded by Raes van Heers, his wife Pentecote d'Arkel, and Jean de Wilde, lord of Kessenich.

Charles came from the direction of Sint-Truiden, where he left a few thousand men behind, including 500 English archers, to prevent an intervention of the city's garrison.

Raes van Heers and the French envoy François Royer, Baillif of Lyon, were amongst the first to flee the battlefield.

The Prince-Bishopric became a Burgundian protectorate under Guy of Humbercourt and all cities in the County of Loon were forced to remove their defences.