Parse this person name:

Andrzej Bien'Sager, 1399-1463, flourished 1416-1440
user
first_name: Andrzej
last_name: Bien'Sager
middle_names: []
temporal:
- start: 1399
  end: 1463
  type: life_span
- start: 1416
  end: 1440
  type: flourished
titles: []
extra_info: []
assistant