Parse this person name:

Carpentier, Céline Stéphane., Saint Margot (1258-1315)
user
first_name: Céline
last_name: Carpentier
middle_names:
- Stéphane
temporal:
- start: 1258
  end: 1315
  type: life_span
titles: []
extra_info:
- Saint Margot
assistant