Parse this person name:

Alfons Stiebitz (1443-1500, flourished 1458-1485)
user
first_name: Alfons
last_name: Stiebitz
middle_names: []
temporal:
- start: 1443
  end: 1500
  type: life_span
- start: 1458
  end: 1485
  type: flourished
titles: []
extra_info: []
assistant