Turenne's force advanced nearly to the foot of the hill, the prince's army followed him, and also took up its position.

But just as the attack was about to be made a great tumult was heard on the hill, and Enghien and Turenne rode to a neighbouring height in order to ascertain what was going on, leaving strict orders that no movement was to be made until their return.

Count d'Espenan, who commanded the two advanced regiments of Enghien's army, however, ordered a detachment to attack a redoubt which stood within the line of attack, and Merci sent supports to its defenders.
D'Espenan sent more troops on his side and the engagement became serious.

Suddenly the Imperialist artillery opened fire along the whole of their line, and Enghien's troops, apparently taking this for the signal of the beginning of the battle, moved forward for the assault without order or leader.

As they were broken and confused by endeavouring to pass through the abattis of felled trees, the Bavarians rushed out and drove them back with great slaughter.