In "MacCormick v. Lord Advocate" (1953), an action over the legitimacy of the numeric Style of the British Sovereign, asserting only the style Elizabeth I for Elizabeth II would only carry legal authority in Scotland Lord President Cooper gave judicial recognition to the concept of a "fundamental law" of Scotland that merged with that of England into the law of Great Britain at the time of the Act of Union 1707, a corpus of law which the supremacy of Parliament may not extend to altering, as “the principle of unlimited sovereignty of Parliament is a distinctively English principle and has no counterpart in Scottish constitutional law”. He raised as a hypothetical consideration the question of whether such fundamental laws could be judged by an English or Scottish court in the same manner as other countries consider constitutional cases. However, he left the matter open, saying "I reserve my opinion."