Here, in the night of Easter Tuesday, they rapidly formed an entrenched camp, upon the dyke along the river, and, although molested by some armed vessels, succeeded in establishing themselves in a most important position.
On the morning of Easter Wednesday, April 16, Mansfeld, perceiving that the enemy had thus stolen a march upon him, ordered one thousand picked troops, all Spaniards, under Aquila, Casco and other veterans, to assault this advanced post.

A reserve of two thousand was placed in readiness to support the attack.

The Spaniards slowly crossed the bridge, which was swaying very dangerously with the current, and then charged the entrenched camp at a run.

A quarrel between the different regiments as to the right of precedence precipitated the attack, before the reserve, consisting of some picked companies of Mondragon's veterans, had been able to arrive.

Coming in breathless and fatigued, the first assailants were readily repulsed in their first onset.