Parse this person name:

Andrej Geißler, 1401-1442, flourished 1420-1437
user
first_name: Andrej
last_name: Geißler
middle_names: []
temporal:
- start: 1401
  end: 1442
  type: life_span
- start: 1420
  end: 1437
  type: flourished
titles: []
extra_info: []
assistant