Parse this person name:

Grégoire V. Cécile Pires-Riou (born 1324)
user
first_name: Grégoire
last_name: Pires-Riou
middle_names:
- V.
- Cécile
temporal:
- start: 1324
  end: null
  type: life_span
titles: []
extra_info: []
assistant