Parse this person name:

François-Chevallier, Zacharie Gérard Laetitia., Marchand-les-Bains (1813-1847)
user
first_name: Zacharie
last_name: François-Chevallier
middle_names:
- Gérard
- Laetitia
temporal:
- start: 1813
  end: 1847
  type: life_span
titles: []
extra_info:
- Marchand-les-Bains
assistant