The establishment of Le Parcq dates from the founding of a castle (on the current site of Vieil-Hesdin) by Baldwin I of Constantinople or Baudouin IX, Count of Flanders in about 1208.
After the destruction of Vieil-Hesdin in) 1553 by Charles V, the park was, at the initiative of Philippe V of France, made the parkland available to those displaced by the fall of the old town, who wished to build new homes on the parkland.