 For the first time the kings of Siam exercised his powers through a council.On 14 July 1925 King Prajadhipok formed the Supreme Council of State of Siam (; ) made up of 5 senior princes (all of them his brothers and all of them ministers of state) to help govern the country.However, after the revolution in 1932, the Khana Ratsadon decided to dissolve this council.