French lawyer, man of letters, and political philosopher who lived during the Age of Enlightenment (1689-1755), best known for his theory of the separation of powers—today a founding principle of many liberal constitutions throughout the world. Extremely rare ALS in French, signed “Montesquieu,” one page both sides, 6.75 x 8.75, October 9, 1748. Letter to the Marquis de Palarin, one of his main friends and protectors, in part (translated): "I would wish to be…giving proof of how grateful I am for the generous solicitude that you have been willing to extend to me at a time when only your beneficent character could guide you to favor me." In fine condition, with creases to the corners, and seal-related paper loss to the integral address leaf. ALSs by Montesquieu are incredibly rare, as he is typically only found in LSs. A truly exquisite piece.
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