Parse this person name:

Letizia Nitto (1421-1495, flourished 1439-1469)
user
first_name: Letizia
last_name: Nitto
middle_names: []
temporal:
- start: 1421
  end: 1495
  type: life_span
- start: 1439
  end: 1469
  type: flourished
titles: []
extra_info: []
assistant