How about the Swiss Guard? The Hundred Swiss were created in 1480 when Louis XI retained a Swiss company for his personal guard. The
Cent Suisses company was disbanded after Louis XIV left Versailles in October 1789. It was, however, re-founded on 15 July 1814 with an establishment of 136 guardsmen and eight officers. The Hundred Swiss accompanied Louis XVIII into exile in Belgium the following year and returned with him to Paris following the Battle of Waterloo. The unit then resumed its traditional role of palace guards at the Tuileries but in 1817 it was replaced by a new guard company drawn from the French regiments of the Royal Guard.
Or the Musketeers? More info here --
https://en.wikipedia.org/wiki/Musketeers_of_the_Guard
As for Napoleon - he had his Grenadiers, his elite Troops which were only deployed when battles go desperate, and 8 out of 10 battles once they are in it is a Napoleonic Victory ( I do not count Borodino as a victory, it was a draw).