Parse this person name:

Valentina Montesano, 1248-1304, flourished 1266-1290
user
first_name: Valentina
last_name: Montesano
middle_names: []
temporal:
- start: 1248
  end: 1304
  type: life_span
- start: 1266
  end: 1290
  type: flourished
titles: []
extra_info: []
assistant