CJ ML
The categories of the Napoleonic Code were not drawn from earlier French laws, but instead from Justinian's sixth-century codification of Roman law, the Corpus Juris Civilis and, within it, the Institutes. The Institutes divide law into the law of: persons things actions.
Similarly, the Napoleonic Code divided law into law of: persons property acquisition of property civil procedure (removed into a separate code in 1806).