Pierre Le Pesant, sieur de Boisguilbert, French economist (d. 1714)
Pierre le Pesant, sieur de Boisguilbert or Boisguillebert (French: [bwaɡilbɛʁ]; 17 February 1646 – 10 October 1714) was a French lawmaker and a Jansenist, one of the inventors of the notion of an economic market.