Charles de Secondat
Charles-Louis de Secondat, Baron de La Brède et de Montesquieu (; French: [mɔ̃tɛskjø]; 18 January 1689 – 10 February 1755), generally referred to as simply Montesquieu, was a French judge, man of letters, and political philosopher.
He is famous for his articulation of the theory of separation of powers, which is implemented in many constitutions throughout the world. He is also known for doing more than any other author to secure the place of the word “despotism” in the political lexicon. His anonymously published The Spirit of the Laws in 1748, which was received well in both Great Britain and the American colonies, influenced the Founding Fathers in drafting the United States Constitution.