Parse this person name:

Bertrand Boulay, Sébastien Christophe Q., 1350-1423
user
first_name: Sébastien
last_name: Bertrand Boulay
middle_names:
- Christophe
- Q.
temporal:
- start: 1350
  end: 1423
  type: life_span
titles: []
extra_info: []
assistant