The decision of the British Supreme Court regarding the Queen’s order to prorogue Parliament contains the following:

32. The 17th century was a period of turmoil over the relationship between the Stuart kings and Parliament, which culminated in civil war. That political controversy did not deter the courts from holding, in the Case of Proclamations (1611) 12 Co Rep 74, that an attempt to alter the law of the land by the use of the Crown’s prerogative powers was unlawful.