To the south of the Zurlan hill lay the vast sprawl of Murat’s cavalry lines where the troopers were carefully saddling their mounts, checking every strap and buckle to ensure they would be well seated if they needed to charge.The cuirassiers helped each other into their polished chest and back plates before pulling on their helmets with their flowing horsehair crests. In other regiments the dragoons, hussars and lancers made ready and then led their horses into line to await the start of the battle.

On the great mound of the Zurlan the artillery crews carried the first charges from the caissons up to the massed batteries, where some guns were trained on the Heights opposite while others were aimed to the south to pour an enfilading fire on the enemy’s attacks across the Goldbach stream. Even though it was still dark there was no doubt about where the strongest concentration of the enemy forces lay. A faint loom across the skyline in the direction of the village of Pratzen revealed their position and the French gunners marvelled at the strength of the forces ranged against them.

Napoleon led his staff up the hill to the command post that had been prepared for him the afternoon before. He had slept in a barn at the foot of the hill on a bed of straw, and had managed to snatch three hours of deep sleep. Like most of his veterans Napoleon had long since developed the knack of quickly falling into a deep sleep when the chance arose. He felt the familiar light ache of excitement mingled with anxiety in the pit of his stomach. Even now, his mind raced over the details of his plan and the disposition of his troops, and there were still doubts in his mind.

If, for any reason, Davout’s corps failed to arrive on the right flank in time to stiffen its defence, then the enemy might turn the flank and roll up the French line. Davout had visited headquarters the previous evening to report and give his word that his men would reach the battlefield in time to play their part.The marshal had looked weary, and no wonder, Napoleon reflected. He and his men had marched over eighty miles from Vienna in two days after receiving Berthier’s summons. The corps would be exhausted, and yet the fate of the Grand Army might well rest on their shoulders.