Francois Langlois (1589-1647)

"François L’Anglois (12 May 1589 in Chartres – 14 January 1647 in Paris) was a French painter, engraver, printer, bookseller, publisher and art dealer, best known for his 1620 book "Livre de Fleurs", a compendium of garden flowers, birds and insects.
L’Anglois ran a workshop in Paris from where he turned out and sold engraved prints. He designed the title page for "Livre de Fleurs" and had the botanical plates engraved by the German, Léonard Gaultier (1561–1641), also resident in Paris, Claude Savary, and Barthélémy Gaultier, the editor being Jean Le Clerc. The remaining plates were drawn and engraved by L’Anglois.
L’Anglois also published Pierre de Sainte-Marie Magdeleine´s "Traitté d´horlogiographie" in 1645, a treatise on timekeeping, methods for determining the time both by day and by night, the timing of tides, how to cut geometrically regular shapes from stone or wood, and all aspects of measurement and projection.

Nicolas l´Anglois, a brother or son of François, published another edition of the book in 1657 in Paris." - (Wikipedia (en) 09.08.2018)

"François L’Anglois or Langlois (born in Chartres, baptised 12 May 1589; died 13 January 1647, in Paris), also called F. L. D. Ciartres, was a French print publisher, print seller, engraver, bookseller, art dealer, and painter. He is widely considered to have been the first important print publisher in France and to have contributed significantly to spreading awareness of contemporary artists' work throughout Europe." - (Wikipedia (en) 10.08.2021)