Maximilian came to the throne in 1486 with exceptional advantages. He was heir to the extensive Austrian lands, and as the widowed husband of Charles the Bold's daughter Mary he administered the Netherlands. Although he soon gave up these provinces to his son Philip, the fact that they were in the possession of his family added to his influence, and this was further increased when Philip married Joanna, the heiress of the Spanish kingdoms. From Maximilian's accession the Empire exercised in the affairs of Europe an authority which had not belonged to it for centuries. The reason for this was not that the Empire was stronger, but that its crown was worn by a succession of princes who were great sovereigns in their own right. Reforms in Germany. 1495. Having in 1490 driven the Hungarians from Vienna and recovered his hereditary lands, and having ordered the affairs of the Netherlands, Maximilian turned his attention to Italy, whither he was drawn owing to the invasion of that country by Charles VIII. of France in 1494. But before he could take any steps to check the progress of Charles pecuniary necessities compelled him to meet the diet. At this time the German, or imperial, diet consisted of three colleges, one of the electors, another of the princes, both spiritual and secular, and a third of representatives of the free cities, who had, however, only just gained the right to sit beside the other two estates. The diet was an extremely clumsy instrument of government, and it was perhaps never more discredited or more impotent than when it met Maximilian at Worms in March 1495. But in spite of repeated rebuffs the party of reform was valorous and undaunted; its members knew that their case was overwhelmingly strong. Although disappointed in the hope which they had nourished until about 1490 that Maximilian himself would lead them, they had found a capable head in Bertold, elector of Mainz. The king lost no time in acquainting the diet with his demands. He wished for men and money to encounter the French in Italy and to resist the Turks. Bertold retorted that redress of grievances must precede supply, and Maximilian and the princes were soon discussing the proposals put forward by the sagacious elector. His first suggestion that a council nominated by the estates should be set up with the power of vetoing the acts of the king was abandoned because of the strenuous opposition of Maximilian; but Bertold was successful in getting the diet to proclaim an eternal _Landfriede_, that is, to forbid private war without any limitation of time, and it was agreed that the diet should meet annually to advise the king on matters of moment. The idea of a council, however, was not given up although it took a different form. An imperial court of justice, the _Reichskammergericht_, was established; this consisted of sixteen members nominated by the estates and a president appointed by the king.