Parse this person name:

Castrillo Rodrigo, Gerardo R. Pepito, 1357-1425
user
first_name: Gerardo
last_name: Castrillo Rodrigo
middle_names:
- R.
- Pepito
temporal:
- start: 1357
  end: 1425
  type: life_span
titles: []
extra_info: []
assistant