What is the reason for the change in the role of parliament and the states general at the end of the 15th century?

This was due to the fact that great changes took place in England and France at that time. In England, the Tudor dynasty came to power, thus, the absolute power of the king was strengthened. In France, the feudal strife was completed, in which Louis 11 emerged victorious. He was able to finally unite the country. All these changes also affected the highest estates, such as the English Parliament and the States General.