And a warden of the Welsh marches who harried Owen of Glendower, the direct male line of Robert fitz Harding failed, and but for the settlement of the estates Berkeley would have passed from the family.
For four generations the land was comparatively quiet, but the great rebellion of Owen Glendower in the reign of Henry IV.
The leader was a gentleman named Owen ~ Glendower, who had the blood of the ancient kings of Gwynedd in his veins.
The king marched against him in person in 1400 and 1401, but Glendower showed himself a master of guerrilla warfare; he refused battle, and defied pursuit in his mountains, till the stores of the English army were exhausted and Henry was forced to retire.
King s failure to crush Glendower had destroyed his reputation for capacity.