The kings Charles V (1364 - 1380) and Charles VI (1380 - 1422) financed the transformation into a castle for the successive owners of the castle, the counts de Tancarville Jean II and his grandson Guillaume IV. A high keep, defended by two drawbridges, was built.
The monarchs Charles V (1364 - 1380) and Charles VI (1380 - 1422) undertook a renovation of the castle for their successive heirs, the counts de Tancarville Jean II and his grandson Guillaume IV. A fortified stronghold with two gates was erected.