J. N. Larned, History for ready reference, Volume 1…
“ The king can make no decision in matters in which the council of state are to be heard, unless at least three counsellors of state, and the secretary of state whom it concerns, or his deputy-secretary, are present.--All the members of the council shall, upon due notice, attend all deliberations deemed of importance, and which concern the general administration of the affairs of the kingdom; such as questions for adopting new statutes, repealing or altering those in existence, introducing new institutions in the different branches of the administration, &c. ”
