Rubuta ci gaba don wannan sakin layi - A ranar 14 ga Janairu, 1771, an haifi Ghigny a Brussels na iyaye Étienne Ghigny da Maria Segers. A shekara ta 1792 ya shiga Faransa ta 12th Chasseurs à Cheval Regiment, ya zama mataimakin laftanan a ranar 5 ga Satumba, 1792, laftanan na farko a ranar 28 ga Yuli, 1795 da kuma kyaftin a ranar 1 ga Oktoba, 1795. Gwarzon yaƙi na 12th Chasseurs sun haɗa da yaƙe-yaƙe na Valmy
da Jemappes a cikin 1792, Yaƙin Neerwinden a cikin 1793, yaƙe-yaƙe na Charleroi (Lambusart) da Fleurus a cikin 1794, Hanyar Rhine a cikin 1795, yaƙe-yaƙe na Amberg da Limburg a cikin 1796 da Yaƙin Neuwied a cikin 1797. Babu wani takamaiman ambaton Ghigny a cikin waɗannan ayyukan, kawai cewa an san rukunin. A lokacin yaƙe-yaƙe na juyin juya halin Faransa, Ghigny ya yi yaƙi tare da Sojojin Arewa, Sojojin Sambre-et-Meuse da Sojojin Rhine.