The correct answer is: "MONTESQUIEU".
The division of powers was a principle derived by Baron de Montesquieu during the Enlightenment era, which brought reason and the scientific mehood in opossition to religious dogmatism and to the old regime structures.
The principle of division of powers states that the power of the state should be divided in independent three branches:
- Legislative: in charge of enacting legislation
- Executive: in charge of enforcing the law
- Judiciary: which supervises and amends the legislation
Moreover, a system of checks should be developed so ensure a balance between the three branches. Each branch should supervise the other two, so that none of them gathers enough power as to overrule the others.