Just on an hour’s drive south of Calais, wedged in between Le Touquet and Arras, in the historic Somme valleys, is Chateau Bermicourt. Built in 1826, the ancestral Chateau served as the HQ for the Royal tank Corps in the Great War; and during WWII it was occupied by German forces. Although the Chateau is still a private residence lived in by the young de la Border family, its out buildings have been developed into …