Parse this person name:

Margaux Lebrun (1318-1375, flourished 1346-1368)
user
first_name: Margaux
last_name: Lebrun
middle_names: []
temporal:
- start: 1318
  end: 1375
  type: life_span
- start: 1346
  end: 1368
  type: flourished
titles: []
extra_info: []
assistant