- Born on December 20, 1826 in Geneva
- Deceased on August 17, 1882, at the age of 55 years
Parents
- Johan Jacob De Geer af Leufsta (1792 - 1829), capitaine des gardes du corps du roi de Suède
- Adrienne Françoise Massot (1803 - 1867)
Family
- Married on June 21, 1851 in Geneva, with Jean Auguste Patron (1821 - 1897), issuing
- Noémi Jeanne (1852 - 1927)
- Thérèse (1856 - 1931)