Both his brother Andries and Cornelis were very critical of the Orange family’s influence. Together with the Republican political leader Grand Pensionary Johan de Witt, the De Graeff brothers strived for the abolition of stadtholdership. They desired the full sovereignty of the individual regions in a form in which the Republic of the United Seven Netherlands was not ruled by a single person. Instead of a sovereign (or stadtholder) the political and military power was lodged with the States General and with the regents of the cities in Holland.