Montesquieu believed that government power should be divided between different branches. What are these branches?

Legislative, executive, and judicial.

Explanation:

Montesquieu was an influential French political philosopher during the 18th century. He holds the credit of having articulated the political theory that states that governments should be divided in three separate though dependent branches: the executive, the legislative, and the judicial. The core of this idea greatly influenced the writing of the United States Constitution in the 18th century and is present in many other political constitutions today.