He was named vice admiral in 1869 and served on the Admiralty Council (Conseil d'amirauté). He was named Préfet Maritime de la Manche et de la Mer du Nord, a position he held between 1869 and 1871 and during which he served to guard the Brittany coast during the Franco-Prussian War.
He was appointed vice admiral in 1869 and served on the Admiralty Council. He held a key position as Préfet Maritime de la Manche et de la Mer du Nord from 1869 to 1871, where he played a crucial role in safeguarding the Brittany coast during the Franco-Prussian War.