Soult

Marshal General Jean-de-Dieu Soult, 1st Duke of Dalmatia

Marshal General Jean-de-Dieu Soult, 1st Duke of Dalmatia

Marshal Soult was Napoleons chief of staff for the Waterloo campaign.

Waterloo:

 

Uniform:

In my opinion this site is the best source of uniform reference for the 100 days (Waterloo) campaign: