These vigorous measures brought about a slight recovery, but in spite of the vigilance of the Holy See and the good administration of the first abbots, the improvement was of short duration. The order suffered severely during the Hundred Years' War. From 1471 till 1579 Grandmont was held by commendatory abbots; shortly after the latter date there were only eight monks in the monastery. The Huguenots seised the abbey on one occasion, but were expelled by Abbot Rigaud de Lavaur in 1604.