No, he did not sign the Constitution. <span />
In general, European leaders were threatened by the spread of Muslim rule, since they thought it was affecting those who may otherwise be interested in Christianity. They launched several violent crusades against the Muslims for this reason.
Answer:
Montesquieu believed that government should be separated into three branches with different roles to protect liberty but, Locke was more concerned with protecting the individual liberties of people, like property, peace and safety.
My answer would be fertile soil.