Editing Battle of Wagram (section)

===Masséna's "Infernal Column"===
Meanwhile, Masséna had indeed made remarkable progress since 11:00, when he had begun disengaging from the struggle at Aderklaa and organising his march against Klenau. On the French left, Klenau, commander of VI Korps, was fully aware of Masséna's manoeuvre, stating in his post-battle report that he saw an "Infernal Column" advancing towards him. By 12:30, elements of IV Corps were at Essling and Masséna received the Emperor's dispatch, informing him of Davout's success and urging him to attack. Masséna sent [[Jacob François Marulaz|Marulaz]]'s cavalry to clear the enemy horse, which was pushing back Boudet's defeated division. Then, Marulaz fell upon and captured the Austrian battery which was bombarding the bridges over the Danube, sending the panicked gunners fleeing for their lives.  An Austrian countercharge from Walmoden's Austrian hussars sent the French horse reeling and recaptured the lost battery, managing to carry most of it, except two guns, to safety, before more French cavalry, this time from [[Antoine Charles Louis de Lasalle|Lasalle]]'s division, came up against them. The French cavalry attack halted the advance of Klenau's Korps and allowed the French launch an attack of their own against the village of Essling. Six weeks before, during the Battle of Aspern-Essling, the French had valiantly defended this village against several Austrian attacks; now they were ordered to take it from some 1,200 whitecoats. The village was in ruins, but the sturdy stone granary was still standing and represented a formidable defensive structure. Nevertheless, [[François Roch Ledru des Essarts|Ledru des Essarts]]'s brigade from Legrand's 1st division stormed the position and, after intense fighting, they secured Essling towards 14:00, sending the defenders fleeing towards Aspern. Masséna then took Aspern after a brief combat and, collecting his four infantry divisions, continued to press Klenau, sending [[Gabriel Jean Joseph Molitor|Molitor]]'s division towards Breitenlee.<ref name="Arn162"/> There, General [[Pierre François Joseph Durutte|Durutte]]'s division of the "Army of Italy", which had been sent to plug the gap between IV Corps and the rest of the army, had just taken the village of Breitenlee. Durutte's division was able to link up with Molitor.<ref name="Nau67"/>

Masséna had accomplished his mission and had no further orders to continue his action but, hearing the intense cannonade on his right, he understood that he needed to continue his attack. He detailed Boudet's division to march on Kagran, while his other three infantry divisions marched on Leopoldau. The corps cavalry preceded the infantry and Lasalle's squadrons caught up with Klenau's infantry near Leopoldau. There, the French cavalry met two Austrian battalions, already formed in solid masses. This formation was ideal for fending off enemy horse. Nevertheless, the French charged impetuously but achieved little. The first mass could only be dispersed after horse artillery came into action. Not long before 17:00, the cavalry moved against the second mass and it was during this action that the gallant Lasalle, one of the best cavalry commanders of his time, was shot dead. Marulaz took overall command of the cavalry and personally placed himself at the head of the 8th Hussars, in a bid to avenge the slain commander; the attempt failed and Marulaz was himself wounded and had to be carried away to the rear. This event, as well as the fact that the French were now under fire from the artillery of Austrian V Korps on Bisamberg heights, convinced Masséna to halt his pursuit. Towards 17:00 Klenau had succeeded in extracting his corps from the dangerous position next to the Danube and moved to relative safety behind the reserve V Korps, deployed on the Bisamberg heights.<ref>Naulet 70.</ref>