 Originally small Roman stations where troops or convoys came to rest and eat on their travels between Rome, Arras, Thérouanne and Boulogne, these stations then developed and became the villages of today.The castle, built on a hill surrounded by a wide and deep moat served as a refuge against the successive invasions and plundering of the Normans, Flemish and Spanish armies.Rely has followed the fate of the volatile Artois region over the centuries