On 5 July 1809, Lasalle fought at the Battle of Wagram commanding a Light Cavalry Division in the IV Corps of Marshal Masséna.
On the morning of the battle, Lasalle had a presentiment about his death.
He drew up a petition to the Emperor, asking him to take care of his children, and gave it to one of his friends to deliver to Napoleon, if necessary.
On the eve of the battle, opening his luggage he found his broken pipe, a bottle of liquor and a broken glass that had been used by his wife.
As a result of these omens, he told his aide-de-camp, "I will not survive this day".
He wrote a letter to his wife that read: "Mon coeur est à toi, mon sang à l'Empereur, ma vie à l'honneur" (My heart belongs to you, my blood to the Emperor, my life to honor).

On the night of the second day, Lasalle's men had still not been ordered to fight so Lasalle went to Marshal Masséna to ask permission to pursue the enemy.
Masséna ordered him to go aid General MacDonald.
Lasalle exclaimed, "The battle is almost finished and we are the only ones who have not contributed to the victory!
Let’s go, follow me!"
Lasalle was temporarily separated from his division and accidentally alerted a battalion of enemy infantry, so he charged them with the 1st Cuirassier Regiment.
Lasalle was shot in the chest but continued to charge.
The enemy infantry broke and was routed as Lasalle and regiment pursued them.
As he charged, Lasalle was shot between the eyes by an Hungarian grenadier and was killed instantly.
Marulaz tried to avenge Lasalle by leading a hussar regiment against a square of Austrian infantry, but was wounded in the attempt and had to be carried to the rear.
On 5 July 1809, Lasalle fought at the Battle of Wagram commanding a Light Cavalry Division in the IV Corps of Marshal Masséna. On the morning of the battle, Lasalle had a presentiment about his death. He drew up a petition to the Emperor, asking him to take care of his children, and gave it to one of his friends to deliver to Napoleon, if necessary. On the eve of the battle, opening his luggage he found his broken pipe, a bottle of liquor and a broken glass that had been used by his wife. As a result of these omens, he told his aide-de-camp, "I will not survive this day". He wrote a letter to his wife that read: "Mon coeur est à toi, mon sang à l'Empereur, ma vie à l'honneur" (My heart belongs to you, my blood to the Emperor, my life to honor).
On the night of the second day, Lasalle's men had still not been ordered to fight so Lasalle went to Marshal Masséna to ask permission to pursue the enemy. Masséna ordered him to go aid General MacDonald. Lasalle exclaimed, "The battle is almost finished and we are the only ones who have not contributed to the victory! Let’s go, follow me!" Lasalle was temporarily separated from his division and accidentally alerted a battalion of enemy infantry, so he charged them with the 1st Cuirassier Regiment. Lasalle was shot in the chest but continued to charge. The enemy infantry broke and was routed as Lasalle and regiment pursued them. As he charged, Lasalle was shot between the eyes by an Hungarian grenadier and was killed instantly. Marulaz tried to avenge Lasalle by leading a hussar regiment against a square of Austrian infantry, but was wounded in the attempt and had to be carried to the rear.
Antoine Charles Louis de Lasalle