The
parish register of the parish of Saint-Benoit, Paris, shows that Louise-Magdeleine, baptized in 1686, was one of at least six children of Daniel Horthemels, a bookseller, and his wife Marie Cellier. Active as a
copperplate engraver by 1707, on 10 August 1713 Horthemels married another engraver,
Charles-Nicolas Cochin the Elder. and Marie-Nicole (b. 1689, died after 1745), Louise-Magdeleine Horthemels' son Charles-Nicolas Cochin the Younger became an engraver to the court of King
Louis XV, a designer, writer, and art critic. Horthemels died in Paris at her son's house on 2 October 1767. ==Work==