Parse this person name:

Lévy Leroy, Marcel Isabelle A. Stéphane, born 1818
user
first_name: Marcel
last_name: Lévy Leroy
middle_names:
- Isabelle
- A.
- Stéphane
temporal:
- start: 1818
  end: null
  type: life_span
titles: []
extra_info: []
assistant