As a Brit, you already have a king/queen in your country.

Details are important as well as examples, and I'm not in the business of simply bringing back empowered kings. In the system I discussed the role mostly is about being a cool figurehead, not so terribly different from what you have now (though the king would be elected from among the re-invented Aristocracy in a meritocratic way, and therefore be better at the role than what you have now -- and it is of course true that the discussed system would be about bringing back the nobility in a genuinely empowered way).