Charles Louis de Secondat, Baron de La Brède et de Montesquieu (ʃaʁl lwi də səɡɔ̃da baʁɔ̃ də la bʁɛd e də mɔ̃tɛskjø; 18 January 1689 - 10 February 1755), generally referred to as simply Montesquieu (ˈmɒntəskjuː, ˌmɒntEˈskjɜː, mɔ̃tɛskjø), was a French judge, man of letters, historian, and political philosopher. He is the principal source 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 Law (1748), which was received well in both Great Britain and the American colonies, influenced the Founding Fathers of the United States in drafting the U.S. Constitution. Montesquieu was born at the Château de la Brède in southwest France, south of Bordeaux. His father, Jacques de Secondat (1654–1713), was a soldier with a long noble ancestry, including descent from Richard de la Pole, Yorkist claimant to the English crown. His mother, Marie Françoise de Pesnel (1665–1696), who died when Charles was seven, was an heiress who brought the title of Barony of La Brède to the Secondat family. His family was of Huguenot origin. After the death of his mother he was sent to the Catholic College of Juilly, a prominent school for the children of French nobility, where he remained from 1700 to 1711. His father died in 1713 and he became a ward of his uncle, the Baron de Montesquieu. He became a counselor of the Bordeaux Parlement in 1714. He showed preference for Protestantism and in 1715 he married the Protestant Jeanne de Lartigue, who eventually bore him three children. The Baron died in 1716, leaving him his fortune as well as his title, and the office of président à mortier in the Bordeaux Parlement, a post that he would hold for twelve years. Montesquieu's early life was a time of significant governmental change. England had declared itself a constitutional monarchy in the wake of its Glorious Revolution (1688–1689), and joined with Scotland in the Union of 1707 to form the Kingdom of Great Britain.