Parse this person name:

Bajardi Vittadello, Ornella Olga Pellegrino, 1550-
user
first_name: Ornella
last_name: Bajardi Vittadello
middle_names:
- Olga
- Pellegrino
temporal:
- start: 1550
  end: null
  type: life_span
titles: []
extra_info: []
assistant