Le Balp mobilised the peasants and tried to maximize their efforts, but he was killed by a surprise sword thrust from his prisoner Charles Maurice de Percin, marquis de Montgaillard, on the night of 3 September, on the eve of the planned uprising.
Arnaut Guilhem was the ancestor of three branches of the house of Marsan through his three sons: the co-lords of Marsans and lords of Roquefort and Montgaillard; the lords of Cauna; and the lords of Tardets.