Gogmagog

Gogmagog was the the leader of the tribe of Giants who inhabited Albion (Great Britain) before the arrival of Brutus of Troy and his crew.

History
In Geoffrey of Monmouth's "History of the Kings of Britain", the goddess Diana appears to Brutus and tells him. "An island which the western sea surrounds, By giants once possessed, now few remain To bar thy entrance, or obstruct thy reign. To reach that happy shore thy sails employ There fate decrees to raise a second Troy And found an empire in thy royal line, Which time shall ne'er destroy, nor bounds confine."

This is the first allusion to Gogmagog in the text.

Gogmagog and a group of twenty other Giants attacked the Trojan settlement, and slaughtered many of them but ultimately the Giants were defeated. Gogmagog wrestled with Corineus, second in command of Brutus, but was thrown off a cliff and defeated.

After this Corineus was given the south-most area of the Island to rule over and Cornius named this place Cornwall, after himself. That region had the highest number of monsters and remaining Giants.

Legend of Artemis Constantine
Morgana Le Fey attempted to recruit Gogmagog for her army to fight against the Knights Round and destroy House Pendragon once and for all.

Gogmagog refused however on account of the fact that Morgana is also descended from Cornius and Brutus.

During a quest that takes her back to Cornwall, Artemis Constantine and Lancelot Stark are forced to do battle against Gogmagog.

Trivia

 * The origins of Gogmagog and his tribe are somewhat unclear. Geoffrey of Monmouth never clarifies where exactly his Giant tribe came from. A later story claims that they are the children of Incubi and women.