Conversation so far:
what is the Napoleonic Wars?
In 1797 he was sent to arrest the victorious march of General Bonaparte in Italy.
What became of it?
he conducted the retreat of the over-matched Austrians with the highest skill.
What other things happened during the Napoleonic Wars?
In the short and disastrous war of 1805 Archduke Charles commanded what was intended to be the main army in Italy.

Question: what happened with Archduke Charles?
Self-contained rewrite: what happened with Archduke Charles in the 1805 Napoleonic War?