Before Jock eats his toast and others follow suit, it needs to be said that while the original legislation was directed against the possibility that a monarch might have attachments to the Roman church (and hence to foreign powers) it also debarred - in England - nonconformists. The monarch, as Supreme Governor of the Church of England, was and is required to be in communion with the C of E. The King or Queen could not and cannot be a Baptist, Presbyterian (in England not Scotland), Methodist, or hold allegiance to other denominations or other religions or none at all.