Parse this person name:

Baltasar Ríos, 1419-1459, flourished 1435-1454
user
first_name: Baltasar
last_name: Ríos
middle_names: []
temporal:
- start: 1419
  end: 1459
  type: life_span
- start: 1435
  end: 1454
  type: flourished
titles: []
extra_info: []
assistant