Nyorai kupfuurira kweiyi ndima - Lobréau akaberekwa 24 March 1748 muHautvilliers, Champagne, iyo iri Marne yemazuva ano. Akanga ari mwanakomana waGerard Lobreau, chiremba, uye d'Élisabeth Macquart uye akaroora Marie Barbe Eulalie Graillet. Akapinda mubasa semupfuti mu 2nd artillery regiment yeMetz, uye akarwa muCorsica kubva muna 1768-1769; muna 1769 kukunda kweFrance muHondo yePonte Novu kwakagumisa nguva pfupi yeCorsica yekutonga. Pashure pacho, akaenda nechikwata chaAdmiral D'Estaign kunotora chikamu muYorktown Campaign muna 1782 na1783. Pashure pokurwa muhondo dzokurwisana neFirst Coalition
, kunyanya kuchamhembe kweItaly uye Rhine Campaign ya1796, panguva yaakatungamira pfuti pakukombwa kweKehl, akadzokera kuFrance, kwaakatarisira kuvakwa kwenzvimbo dzekuchengetedza dzeBrest. Akagamuchira muchinjikwa weLegion of Honour.