Barthélemy de Laffemas

In a memoir, Laffemas wrote that he lifted "..the silverware shop of the king, and borrowed over two hundred thousand crowns ...".

[citation needed] In 1596, in his "memory to draw Manufactures and works of the kingdom", it proposes to extend the guilds and develop the chambers of trade.

In the same year Laffemas published Les Trésors et richesses pour mettre l'Estat en splendeur, which blasted those who frowned on French silks because the industry created employment for the poor.

He had a great influence in the areas of labor, economic and social organization and a leading role in the history of silk in Europe.

The political economy project of Henry IV of France based on the spread of plantations and silk industry followed Laffemas's advice.

In Paris, the Gobelins manufactory is created and the Bois de Boulogne a silkworm is built surrounded by 15,000 mulberry trees.

This is also the time when the first river navigation channel is dug, the Briare Canal, while the Dutch capital is put to use to dry part of the Marais Poitevin, using as at the Flemish engineers refugee brand new Netherlands, first Protestant republic in Europe.

For domestic trade, Barthélemy de Laffemas emphasizes the rehabilitation and development of roads and bridges, waterways, creating service letter post.