Precedents show that the British constitution (which may not be written and formalised in the same way as the American constitution is presented) but which is, nevertheless, enshrined and codified in the Magna Carta (1215), the Petition of Right (1628), the Bill of Rights (1689) and the Act of Settlement (1701) requires Parliament to consult the electorate directly where constitutional change which would affect their political sovereignty is in prospect. (The 1689 Bill of Rights contains the following oath: `I do declare that no foreign prince, person, prelate, state or potentate hath or ought to have jurisdiction, power, superiority, pre-eminence or authority within this Realm.' Since this Bill has not been repealed it is clear that every treaty Britain has signed with the EU has been illegal.)
