Frédéric Ozanam's father, Jean-Antoine-François Ozanam (1773-1837), originally from Dombes, was the son of a royal notary, "castelain", of Chalamont; after studying law in Bourg-en-Bresse and Lyon, he was a notary's clerk in Pont d'Ain; “Soldier of Year II”, he joined the 1st Hussars regiment, became a second lieutenant in 1796 and participated until 1799, as a cavalry officer, in the Italian campaign. Returning to civilian life in 1800, he worked in a silk trading house in Lyon (Maison Dantoine), married Marie Nantas (1781-1839), daughter of a silk merchant from Lyon, Mathieu Nantas of whom Jean-Antoine-François became a partner before settling in Paris where he joined the house of one of his brothers-in-law (Haraneder Frères) but went bankrupt in 1803. Italy attracts him; he left there i