Parse this person name:

Valmarana, Saverio Antonio., Laghetto Di Castel Gandolfo (1234-1282)
user
first_name: Saverio
last_name: Valmarana
middle_names:
- Antonio
temporal:
- start: 1234
  end: 1282
  type: life_span
titles: []
extra_info:
- Laghetto Di Castel Gandolfo
assistant