"General" of the Cavalry and Governor of Lille  

   
In 1665, he obtains a commission which gives him the command of the 1^st Company of the King’s Great Musketeers. Then, in 1667, he receives the most gratifying post of the Kingdom, according to Colbert, i.e. the one of Lieutenant Captain of this company with authority on all the King’s Musketeers.

He was then entrusted with the direction of Governor of Lille, thus replacing the Marshal Humière.

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Page of the book of Courtils de Sandras

During the assault of the fortress of Lille, he served as Brigadier of Cavalry under the orders, notably, of the Light-horse Company of the Queen and King and the Enghien and Monaco regiments.

Excerpt of a letter
of d’Artagnan to Louvois dated 7^th of July 1672
Concerning in particular fortification
works under the direction of VAUBAN.