"The Spirit of the Laws" by Charles de Secondat, Baron de Montesquieu, Book VII: Consequences of the Different Principles of the Three Governments with Respect to Sumptuary Laws, Luxury and the Condition of Women, Ch. 4: Of Sumptuary Laws in a Monarchy, 1748.
"The Spirit of the Laws". Book by Baron de Montesquieu, Book XXXI: Theory of the Feudal Laws Among the Franks in Relation they Bear to the Revolutions of their Monarchy, Ch. 21: The Same Subject continued, 1748.