III. _Effects of Magna Carta on the genesis of the three Courts of Common Law._ The ultimate consequences of the accomplishment of this reform reached further than was foreseen. Intended merely to remove from litigants a practical grievance of frequent occurrence, it had important indirect effects on the development of the English Constitution. By securing for common pleas a permanent home, it gave an impetus to the disintegrating tendencies already at work within the many-sided household of the king. It contributed somewhat to the slow process whereby the _Curia Regis_, as an administrative organ, was differentiated from the same _Curia_ as the dispenser of justice. It helped forward the cleavage destined to divide completely the future Courts of Westminster from the Court of St. James’s and from Downing Street. Nor was this all: the special treatment accorded to “common pleas” emphasized the distinction between them and royal pleas, and so contributed to the splitting up of the same _Curia Regis_, on its judicial side, into two distinct tribunals. One little group of judges were set apart for hearing common pleas, and were known as "the king’s Judges of the Bench," or more briefly as “the Bench,” and at a later date as the Court of Common Pleas. A second group, reserved for royal pleas, became the court _Coram Rege_, known subsequently as the Court of King’s Bench. There were thus two benches: a common bench for common pleas and a royal bench for pleas of the Crown.[537] ----- Footnote 537: Cf. _supra_, 109. ----- The double process by which these two small courts separated themselves slowly from the parent court and from each other began long prior to Magna Carta, and was not completed before the close of the thirteenth century. These benches were also closely linked with a third bench, known for centuries as the Court of Exchequer, which was in its origin merely one department of that government bureau, the king’s financial Exchequer—that office in which money was weighed and tested and the royal accounts drawn up. Many disputes or pleas affecting Crown debts and debtors had to be there decided, and in due time a special group of officials were set aside to try these. These men, called, not judges, but “barons of the exchequer,” formed what was in fact, though not in name, a third bench or court of justice.