So many things have been cleared up about the current History of Britannia, but that just leaves us with more questions.
In this particular case, we know that Melodias is related to the Ten Commandments, his younger brother forming part of that group. The question is then how does Melodias fit into the whole story.
Was he part of the Ten commandments? It is heavily implied that Meliodas knows a lot about things that happened hundreds of years ago and so far it doesn't seem like he ages the way a normal human does.
He's also called a traitor by Galan, but it is unclear if he is a traitor to the Ten commandments or just to the Demon clan in general. What do you guys think? Was he part of the Ten Commandments?
If he was why did he leave?