Gheorghiu-Dej died in March 1965 and was succeeded by a collective leadership made up of Nicolae Ceaușescu as general secretary, Chivu Stoica as President and Ion Gheorghe Maurer as Premier. Ceaușescu removed rivals such as Stoica, Alexandru Drăghici, and Gheorghe Apostol from the government, and ultimately from the party leadership, and began accumulating posts for himself. By 1969, he was in complete control of the Central Committee. The circumstances surrounding this process are still disputed, but theories evidence that the support given to him by Ion Gheorghe Maurer and Emil Bodnăraș, as well as the ascendancy of Ilie Verdeț, Virgil Trofin, and Paul Niculescu-Mizil, were instrumental in ensuring legitimacy. Soon after 1965, Ceaușescu used his prerogatives to convoke a Party Commission headed by Ion Popescu-Puțuri, charged with investigating both Stalinist legacy and Gheorghiu-Dej's purges: resulting in the rehabilitation of a large number of Communist officials (including, among others, Ștefan Foriș, Lucrețiu Pătrășcanu, Miron Constantinescu, Vasile Luca, and Romanian victims of the Soviet Great Purge). This measure was instrumental in consolidating the new leadership while further increasing its distance from Gheorghiu-Dej's political legacy.