A later descendant of Cunedagius, King Gorboduc, has two sons called Ferreux and Porrex. They quarrel and both are eventually killed, sparking a civil war. This leads to Britain being ruled by five kings, who keep attacking each other. Dunvallo Molmutius, the son of Cloten, the King of Cornwall, becomes pre-eminent. He eventually defeats the other kings and establishes his rule over the whole island. He is said to have "established the so-called Molmutine Laws which are still famous today among the English".