The King of Westphalia Jérôme Bonaparte joined the campaign on 1 July crossing the Niemen river as one of the leaders of the column (Right Flank Force), and led the French army to the Mir. But later he left the army and went to home after.
Prince Schwarzenberg Left Flank Force, and French ally) led the battle of the Austrian Corps at the Gorodeczno... 5.
The Battle of Vilnius (also known as battle of Vilna), in 1812 was part of Napoléon Bonaparte invasion of Russia, a campaign famously marked by its logistical and environmental challenges, ultimately leading to a disastrous retreat for the French Grande Armée. The battle took place from June 28–29, 1812 in Vilnius (then part of the Russian Empire, now the capital of Lithuania), soon after Napoleon launched his invasion by crossing the Nieman River.