Parse this person name:

Aránzazu F. (Aránzazu Fernanda) Sanmartín, died 1209
user
first_name: Aránzazu
last_name: Sanmartín
middle_names:
- Fernanda
temporal:
- start: null
  end: 1209
  type: life_span
titles: []
extra_info: []
assistant