Jabach fled Spain during the early persecutions of Sephardic Jews. He became a naturalized French banker of German origin who oversaw the operations of the East India Company in Paris. He attended the sale of the art collection of the English king, Charles I, and was painted by Anthony van Dyck and Charles le Brun. His bankruptcy caused him to sell 110 of his best artworks to Jean-Baptist Colbert, who purchased the objects on behalf of Louis XIV. Jabach's descendants were members of the Duveen family, who became major art dealers in the late 19th and early 20th centuries.