Parse this person name:

Gustavo Alfieri (1267-1336, flourished 1291-1315)
user
first_name: Gustavo
last_name: Alfieri
middle_names: []
temporal:
- start: 1267
  end: 1336
  type: life_span
- start: 1291
  end: 1315
  type: flourished
titles: []
extra_info: []
assistant