The II Cavalry Corps of the Grande Armée was a French military unit that existed during the Napoleonic Wars.

The II Cavalry Corps was reconstituted for the invasion of Russia in 1812 and commanded by General Louis-Pierre Montbrun who was killed in battle, as was his successor a few hours later.

During the Hundred Days, Emperor Napoleon Bonaparte raised the corps again and entrusted it to General Rémi Joseph Isidore Exelmans.

[6] Around 3:00 PM, the IV Corps under Viceroy Eugène de Beauharnais mounted a frontal assault on the Great Redoubt.

The II Cavalry Corps, now led by General Auguste-Jean-Gabriel de Caulaincourt charged the Russian infantry lines to the south of the position.

Breaking through, the cavalry wheeled to the left and galloped into the open back of the Great Redoubt just as Eugène's infantry fought their way in from the front.

The French infantry tried to hold off the charging Prussian and Russian horsemen but were unable to fire their muskets due to the heavy rain.

Fleeing down to the river bank the French foot soldiers found that the stream was now swollen by the rain and difficult to cross.

[16] A few days later, Napoleon hurled abuse at Sébastiani for mishandling the cavalry, though the unfortunate general was allowed to remain in command.

[19] Around noon, the assault began and MacDonald drove back General Johann von Klenau's Austrian forces.

At this time, Sébastiani's advance was held up by a Russian cavalry corps led by General Peter von der Pahlen at the village of Klein Possna.

[20] Ultimately, Napoleon failed to smash the Allies that day and suffered the loss of Germany as a result of his defeat at Leipzig.