Cunobelinus - historical King of southern Britain between the first and second Roman invasions.

This group includes the Sovereign (the King or Queen of Britain) and no more than 25 full members.

Therefore, he claimed the title and became King of Britain.

No one will come looking in a place like this for the son of the King of Britain.

'By what right do you come here like this to defame the King of Britain?'

"O Arglywydd, do you know me at last, King of Britain?"

You are King of Britain and leading trained cavalry.

I have seen treachery in my time, King of Britain.

But Arthur is King of Britain by the will of the Goddess.

Kay encourages Arthur to take up his destiny as King of Britain.