Other
1911 Classic Encyclopedia: Lettres De Cachet
A detailed explanation of the development and use of the lettre de cachet in French law. The text of this article is from the 1911 edition of the Encyclopaedia Britannica, which generally provided longer, more detailed articles that...
Wikimedia
Wikipedia: Lettre De Cachet
An explanation of the French documents called lettres de cachet, by which people could be imprisoned without trial or recourse. This site provides a clear explanation of why such letters came into being, how they were historically used,...