Parse this person name:

Sigfrido Lumbreras, 1433-1513, flourished 1462-1484
user
first_name: Sigfrido
last_name: Lumbreras
middle_names: []
temporal:
- start: 1433
  end: 1513
  type: life_span
- start: 1462
  end: 1484
  type: flourished
titles: []
extra_info: []
assistant