Parse this person name:

Rey Balaguer, Berta Isidoro N. Alejandro Clotilde, 1781-1840
user
first_name: Berta
last_name: Rey Balaguer
middle_names:
- Isidoro
- N.
- Alejandro
- Clotilde
temporal:
- start: 1781
  end: 1840
  type: life_span
titles: []
extra_info: []
assistant