Parse this person name:

Casado Aznar, Ramón R. Jerónimo M. Cristian, 1666-1700
user
first_name: Ramón
last_name: Casado Aznar
middle_names:
- R.
- Jerónimo
- M.
- Cristian
temporal:
- start: 1666
  end: 1700
  type: life_span
titles: []
extra_info: []
assistant