As The Army of Poland arrived to the South of Leipzig in the evening of the 22nd, skirmishes broke out almost immediately between the light infantry of both sides. Ney wanted to cover his withdrawal North, and so continued to pour reinforcements into the night skirmish. The result was perhaps one of the largest night battles of the Napoleonic wars, with over 15,000 soldiers on each side participating in a confused brawl in the fields between Gallows Hill and Probstheida. By dawn, with his redeployment complete and his new corps securing his flank, Ney dared Barclay to come after him, and the Russian general was quick to oblige.
In the North, Blucher seemed ready to withdraw, though Napoleon wisely decided to wait before attacking. The withdrawal was a ruse, and seeing that the French weren't taking the bait, ordered Yorck to attack Mockern once more. Bennigsen meanwhile, supported by the released Bernadotte, already back in command of the Swedes, launched his own attack on Wiederitzsch. Close ranged artillery support meant the coalition losses were terrible, but by 10am, they'd managed to push their way into the village. East of Mockern, General Sander's Swedish division attempted to cut off Marmont, whose II Corps was in a savage struggle for the village.
______
"Say again!" Marshal Marmont screamed as the world seemed to be coming to an end around him. The roar of his own cannon mixed with crashing of wood and stone, as Prussian roundshot smashed through buildings and men alike, the streets full of crimson smears that had once been men. "Swedish troops are massing for an attack on our right! Sir!" The aide shouted back. Marmont scowled, he thought he'd seen war before, but this was ludicrous. All around him men scurried, some with purpose, others seemed dazed, stunned by the sheer brutality unfolding around them "Tell general-" As he prepared his order, a cannonball skipped down the street, reducing the aide to yet another bloody smear before he could even shriek, and misting down Marmont with blood and viscera in the process "Gah- Christ!" The Marshal struggled to compose himself, before spotting a major nearby "Tell General Delmas to wheel his division to cover right flank!" The Major seemed stunned "Now Major!" Marmont roared. The officer nodded and scampered off to find a horse, and Marmont turned back to his corps. He had just enough time to notice a black spot rapidly grow in his vision, before the shot ripped through his abdomen. He felt the odd sensation of the morning air on his entrails, before the world went black...
_____
To the South, Ney's skirmishers were repulsed in force, and heavy fighting broke out along entire line. In particular, Davout's corps in Probatheida came under attack from an entire Russian corps. Barclay intended to drive straight against the walls of Leipzig themselves, hoping to cut off as much of the Southern sector as possible. To the West, Connwitz fell after a short but bloody clash between Wrede and Baggovout's corps, though the Bavarian field marshal was able to form a new defensive line North of the town. Barclay's right flank now began its assault driving Maison out of Paunsdorf, and mauling Poniatowski to the South. There was a brief scare when Tsar Alexander himself had his horse killed under him, but he was uninjured.
By 3pm Napoleon was hard pressed on every front, even as he held on for dear life. Mockern finally fell, as Prussian and Swedish Cuirassiers nearly routed Nansouty's cavalry. Wiederitzsch briefly fell, forcing Napoleon to order up Mortier and the old guard to retake it, which was swiftly achieved. Marshal Oudinot was wounded by canister, but remained in command. The French did snag a late success that day, when Reynier's XII Corps outflanked his Russian counterpart, who was then charged down by guard cavalry. The French and allies had suffered another 25,000 casualties, the Coalition losing 33,000.
Napleon had intended to continue the fight the next day, but upon learning the scale of his losses, particularly in cavalry, he was persuaded to withdraw. Luckily, Marshal Masséna, who'd been too ill to command the North, had taken charge of the engineers. Two additional bridges were ready by midnight, and the Grande Armée began crossing the Elster bridge. Blucher was alerted to the withdrawl, and launched a frenzied pursuit. The Prussians even surged through the gates, and confused street fighting broke out in Leipzig. Marshal Davout had volunteered to lead the readguard, and checked Blucher long enough for the rest of the army to escape, and then ensured his own corps did as well. By 6am, the battle was over, and the French left behind a corpse-filled, traumatized city for the Coalition...