Question: When was Pierre Napoléon Bonaparte's mother born?
Sentence (from "Alexandrine de Bleschamp"): She was already the widow of the banker Hippolyte Jouberthon (having born him one child, Anna, in 1799), and thus known as "Madame Jouberthon", when she became the second wife of Prince Lucien Bonaparte, a younger brother of Napoleon I of France.
Relevant evidence: No