Charles left an only child, Mary, not yet twenty years of age.  Mary found herself in a most difficult and trying situation.  Louis XI, the hereditary enemy of her house, at once took possession of the duchy of Burgundy, which by failure of heirs-male had reverted to its liege-lord.  The sovereignty of the county of Burgundy (Franche-Comte), being an imperial fief descending in the female line, she retained; but, before her authority had been established, Louis had succeeded in persuading the states of the county to place themselves under a French protectorate.  French armies overran Artois, Hainault and Picardy, and were threatening Flanders, where there was in every city a party of French sympathisers.  Gelderland welcomed the exiled duke, Adolf, as their sovereign.  Everywhere throughout the provinces the despotic rule of Duke Charles and his heavy exactions had aroused seething discontent.  Mary was virtually a prisoner in the hands of her Flemish subjects; and, before they consented to support her cause, there was a universal demand for a redress of grievances.  But Mary showed herself possessed of courage and statesmanship beyond her years, and she had at this critical moment in her step-mother, Margaret of York, an experienced and capable adviser at her side.  A meeting of the States-General was at once summoned to Ghent.  It met on February 3, 1477, Mary’s 20th birthday.  Representatives came from Flanders, Brabant, Artois and Namur, in the southern, and from Holland and Zeeland in the northern Netherlands.  Mary saw there was no course open to her but to accede to their demands.  Only eight days after the Assembly met, the charter of Netherland liberties, called The Great Privilege, was agreed to and signed.  By this Act all previous ordinances conflicting with ancient privileges were abolished.  The newly-established Court of Appeal at Mechlin was replaced by a Great Council of twenty-four members chosen by the sovereign from the various states, which should advise and assist in the administration of government.  Mary undertook not to marry or to declare war without the assent of the States-General.  The States-General and the Provincial States were to meet as often as they wished, without the summons of the sovereign.  All officials were to be native-born; no Netherlander was to be tried by foreign judges; there were to be no forced loans, no alterations in the coinage.  All edicts or ordinances infringing provincial rights were to be ipso facto null and void.  By placing her seal to this document Mary virtually abdicated the absolute sovereign power which had been exercised by her predecessors, and undid at a stroke the results of their really statesmanlike efforts to create out of a number of semi-autonomous provinces a unified State.  Many of their acts and methods had been harsh and autocratic, especially those of Charles the Bold, but who can doubt that on the whole their policy was wise and salutary?  In Holland and Zeeland a Council was erected consisting of a Stadholder and eight councillors (six Hollanders and two Zeelanders) of whom two were to be nobles, the others jurists.  Wolferd van Borselen, lord of Veere, was appointed Stadholder.