Parse this person name:

Léon Julien-Maréchal, 1371-1418, flourished 1400-1413
user
first_name: Léon
last_name: Julien-Maréchal
middle_names: []
temporal:
- start: 1371
  end: 1418
  type: life_span
- start: 1400
  end: 1413
  type: flourished
titles: []
extra_info: []
assistant