How to pronounce “king john” in English

In modern times it began in part with the Magna Carta when the barons of England kind of decided that this divine right of kings thing was not working for them very well andKing John was a real jerk and he needed to be bound by laws and otherwise they weren't going to be loyal to him.And that kind of evolved over time to the concept several hundred years later with John Locke and kind of articulating the notion of consent of the governed and that government