Parse this person name:

Léon Bertrand, 1603-1679, flourished 1618-1640
user
first_name: Léon
last_name: Bertrand
middle_names: []
temporal:
- start: 1603
  end: 1679
  type: life_span
- start: 1618
  end: 1640
  type: flourished
titles: []
extra_info: []
assistant