Parse this person name:

Cécile Simon, 1397-1476, flourished 1419-1447
user
first_name: Cécile
last_name: Simon
middle_names: []
temporal:
- start: 1397
  end: 1476
  type: life_span
- start: 1419
  end: 1447
  type: flourished
titles: []
extra_info: []
assistant