Marianne it is educational to find all these pieces of the economic puzzles of history...I had known of Leclerc as the éminence grise, but not until now Cardinal Richelieu as the 'red eminence'...!
I especially enjoyed, and learned much about mercantilism, from the link on Jean Baptiste Colbert (1619-1683). He really helped France, even while King Louis XIV was draining everything off to fight wars. Also I learned about manorialism, which is another economic system but different from feudalism, somehow (learning lots, but not really keeping all this straight!)