An island inhabited by a giant.
During inclement weather, the giant lit fires on the island to attract passing ships in need of a port. When the ships arrived, the giant would kill everyone aboard. The giant was eventually killed by Uther Pendragon.
Redoubted Giant of the Sure Keep
He attacked Arthur in a forest to avenge his brotherís death. Arthur defeated him. As his brother had died trying to prove his valor to the Duchess of Estrales, the Redoubted Giant took vengeance on this woman by cutting off the arm of one of her ladies, the Countess Bliandois.