With their usual gallantry the Swedes mounted the hill and rushed at the intrenchment.

It was defended with the greatest obstinacy and courage by the Spaniards; but after desperate fighting the Swedes forced their way into the work at two points, and were upon the point of capturing the position when an ammunition wagon accidentally exploded in their midst, killing great numbers and throwing the rest into a temporary disorder, which enabled the Spaniards to drive them out and again occupy the intrenchments.
Before the Swedes had fully recovered themselves the Spanish cavalry, which at the first sound of the conflict the cardinal had ordered to the spot, charged them in flank and forced them to a precipitate retreat down the hillside.

Bitterly regretting his delay at midnight, Horn brought up fresh troops, and after addressing encouraging words to those who had been already repulsed, led the united body to the assault.
But the Weinberg, which had been occupied in the early morning by only four hundred men, was now defended by the whole of the Spanish infantry.
Vain now was the energy of Horn, and ineffectual the valour of his troops.

Time after time did the Swedes climb the hill and strive to obtain a footing on its crest, each assault was repulsed with prodigious slaughter.

Duke Bernhard was now fully engaged with the Imperialists on the Allersheim, and was gradually gaining ground.