Parse this person name:

Leonardo Paltrinieri, 1403-1449, flourished 1433-1444
user
first_name: Leonardo
last_name: Paltrinieri
middle_names: []
temporal:
- start: 1403
  end: 1449
  type: life_span
- start: 1433
  end: 1444
  type: flourished
titles: []
extra_info: []
assistant