THE office of the King is not hereditary. Malaysia practices a system of government based on Constitutional Monarchy and Parliamentary Democracy at two levels; Federal and State levels. At the Federal level, the head of State is the King and the head of government is the Prime Minister.
At the state level, the head (Ruler) of State is either the Sultan, Raja, or Yang di-Pertuan Besar, and the Yang di-Pertua Negeri is the head of State where there are no Rulers: the Chief Ministers (Mentri Besar/Ketua Mentri) are the heads of government.