The most significant feature of the baronial movement of 1258 is that it was the first deliberate and conscious political revolution in English history. The Angevin system of government, essentially a centralised despotism grafted on to the stock of a primitive national monarchy and growing within the framework of a feudal society, was transformed, at the Parliament of Oxford, into a limited monarchy based on written constitution. The entire power and authority of the crown, in every sphere of government, was put into commission and vested in a privy council of fifteen magnates, selected, not by the king, but by a sub-committee appointed by a committee of the great council; and for nearly two years England was successfully governed and reformed by this nominated privy council, which acted throughout in virtue of the mandate expressed in the Provisions of Oxford, regarding itself as representative of and responsible to the great council. In the king's own words, the Council of Fifteen treated him as a minor under their wardship, settling affairs of state without his presence, and without having asked him to attend, issuing orders without awaiting his authorisation, ignoring his views, and merely replying ‘Nous volons qe issy soit’, without any further explanation, when he remonstrated; they passed over his nominees for offices high and low, appointing others against his will; they used his great seal without consulting him, and denied him all use of it; in fact, they so far diminished his royal power and dignity that little or nothing was done at his command, and his orders were neglected as though it were the council that reigned.