Brent Knoll

A hill in Somerset, between Bridgwater and Weston-super-Mare, near the Bristol Channel that features the remains of an Iron-Age fortress.

An interpolation in William of Malmesbury's Historia Rerum Anglicarum tells of an expedition by Arthur to destroy three giants on the hill. Yder, one of Arthur's young warriors, went ahead of his companions and encountered the giants alone. When Arthur arrived, Yder had slain all the giants but had received a serious wound and was unconscious.