Who exactly is the King of LBC

Who exactly is the King of LBC and why is he always handicappedly parked on the meters on Temple? One would think that a King would have to be strong, able bodied, and a force to be reckoned with. In his current state his court and subjects have ample space and opportunity to overtake the throne, accuse the King of treason, and behead him at the stern of the Queen Mary.