No English King has ever laid claim to the general legislative power. The most violent and imperious Plantagenet never fancied himself competent to enact, without the consent of his great council, that a jury should consist of ten persons instead of twelve, that a widow's dower should be a fourth part instead of a third, that perjury should be a felony, or that the custom of gavelkind should be introduced into Yorkshire. [2] But the King had the power of pardoning offenders; and there is one point at which the power of pardoning and the power of legislating seem to fade into each other, and may easily, at least in a simple age, be confounded. A penal statute is virtually annulled if the penalties which it imposes are regularly remitted as often as they are incurred. The sovereign was undoubtedly competent to remit penalties without limit. He was therefore competent to annul virtually a penal statute. It might seem that there could be no serious objection to his doing formally what he might do virtually. Thus, with the help of subtle and courtly lawyers, grew up, on the doubtful frontier which separates executive from legislative functions, that great anomaly known as the dispensing power.
That the King could not impose taxes without the consent of Parliament is admitted to have been, from time immemorial, a fundamental law of England. It was among the articles which John was compelled by the Barons to sign. Edward the First ventured to break through the rule: but, able, powerful, and popular as he was, he encountered an opposition to which he found it expedient to yield. He covenanted accordingly in express terms, for himself and his heirs, that they would never again levy any aid without the assent and goodwill of the Estates of the realm. His powerful and victorious grandson attempted to violate this solemn compact: but the attempt was strenuously withstood. At length the Plantagenets gave up the point in despair: but, though they ceased to infringe the law openly, they occasionally contrived, by evading it, to procure an extraordinary supply for a temporary purpose. They were interdicted from taxing; but they claimed the right of begging and borrowing. They therefore sometimes begged in a tone not easily to be distinguished from that of command, and sometimes borrowed with small thought of repaying. But the fact that they thought it necessary to disguise their exactions under the names of benevolences and loans sufficiently proves that the authority of the great constitutional rule was universally recognised.