Nicholas de Fer (1646-1720) was the son of a map seller, Antoine de Fer, and grew to be one of the most well-known mapmakers in France in the seventeenth century. He was apprenticed at twelve years old to Louis Spirinx, an engraver. When his father died in 1673, Nicholas helped his mother run the business until 1687, when he became the sole proprietor.
His earliest known work is a map of the Canal of Languedoc in 1669, while some of his earliest engravings are in the revised edition of Methode pour Apprendre Facilement la Geographie (1685). In 1697, he published his first world atlas. Perhaps his most famous map is his wall map of America, published in 1698, with its celebrated beaver scene (engraved by Hendrick van Loon, designed by Nicolas Guerard). After his death in 1720, the business passed to his sons-in-law, Guillaume Danet and Jacques-Francois Benard.
Nicholas Sanson (1600-1667) is considered the father of French cartography in its golden age from the mid-seventeenth century to the mid-eighteenth. Over the course of his career he produced over 300 maps. His success can be chalked up to his geographic and research skills, but also to his partnership with Pierre Mariette. Previously, Sanson had worked primarily with the publisher Melchior Tavernier. Mariette purchased Tavernier’s business in 1644. Sanson worked with Mariette until 1657, when the latter died. Mariette’s son, also Pierre, helped to publish the Cartes générales de toutes les parties du monde.