I think the answer your looking for is basically to make sure everything is legit...
The Age of Enlightenment (or simply the Enlightenment) is the era in Western philosophy and intellectual, scientific, and cultural life, centered upon the 18th century, in which reason was advocated as the primary source for legitimacy and authority.
The answer to your question is: A Monarchy.
This was forming a goverment that was strong enough to gain loyalty of its citizens but not so strong as to estrange them
