Parse this person name:

Piergiorgio Vismara, 1445-1491, flourished 1465-1486
user
first_name: Piergiorgio
last_name: Vismara
middle_names: []
temporal:
- start: 1445
  end: 1491
  type: life_span
- start: 1465
  end: 1486
  type: flourished
titles: []
extra_info: []
assistant