Nyora kupfuurira kweiyi ndima - Muna 1639 akasangana naGassendi muParis, ndokuva mumwe wavadzidzi vake. Akanga aripo muhondo dzeRocroi, Nördlingen
, uye paLerida. Kwenguva yakati iye pachake akanga akabatanidzwa naCondé, asi akamugumbura nemashoko okuseka uye akatorerwa kutungamira kwake muvarindi vomuchinda muna 1648. Mukati meFronde, Saint-Évremond akanga ari muchengeti wamambo akasimba. Mutongi weCandale (waakasiya mufananidzo wakaoma kwazvo) akapa murairo muGuienne kuna Saint-Évremond, uyo akanga asvika padanho re "maréchal de camp". Iye anonzi akaisa muhomwe 50,000 livres mumakore asingasviki matatu kubva pahofisi ino. Akanga ari mumwe wevakaurawa vakawanda vakabatanidzwa mukuwa kwaFouquet muna 1661. Tsamba yake kuna Marshal Créqui pamusoro peChibvumirano chePyrenees, iyo inonzi yakawanwa navabatiri vaColbert pakutora mapepa aFouquet, inoratidzika kuva chikonzero chisina kukwana zvikuru chokunyadziswa kwake.