In July 1870, just before Edgardo turned 19, the French garrison in Rome was withdrawn for good after the Franco-Prussian War broke out.
Pada Juli 1870, tepat sebelum Edgardo menginjak usia 19 tahun, garnisun Prancis di Roma menarik diri untuk kebaikan setelah Perang Prancis-Prusia pecah.