- Born on February 13, 1835
- Deceased on July 3, 1888 in Buenos Aires, at the age of 53 years
Parents
- Joseph de Montenach, baron de Montenach, préfet du district allemand, colonel d'infanterie
- Agathe de Maillardoz (1809 - 1884)
Family
- Married in September 1860, with Clémence de Reynold (1839 - 1864), issuing
- Georges (1862 - 1925)
- Married in 1871, with Pauline Marie Louise Deschoux (1847 - )