Parse this person name:

Delaunay Baron, Antoine Mathilde William Stéphanie Grégoire S., died 1356
user
first_name: Antoine
last_name: Delaunay Baron
middle_names:
- Mathilde
- William
- Stéphanie
- Grégoire
- S.
temporal:
- start: null
  end: 1356
  type: life_span
titles: []
extra_info: []
assistant