Parse this person name:

Plácido Montero (1448-1521, flourished 1475-1504)
user
first_name: Plácido
last_name: Montero
middle_names: []
temporal:
- start: 1448
  end: 1521
  type: life_span
- start: 1475
  end: 1504
  type: flourished
titles: []
extra_info: []
assistant