Parse this person name:

Delaunay Jacob, Maggie Bertrand Isabelle Julie, 1338-
user
first_name: Maggie
last_name: Delaunay Jacob
middle_names:
- Bertrand
- Isabelle
- Julie
temporal:
- start: 1338
  end: null
  type: life_span
titles: []
extra_info: []
assistant