Here is the main commander for the French at Rocroi, Louis de Bourbon, Duke d'Enghien, known as "The Grande Conde"
https://en.wikipedia.org/wiki/Louis,_Grand_Cond%C3%A9
The figure is from Warlord Games. The banner is home made.
Some more photos for your delectation - TYW Cuirassiers and a Commander.