Parse this person name:

Witold Gröttner, 1581-1639, flourished 1601-1613
user
first_name: Witold
last_name: Gröttner
middle_names: []
temporal:
- start: 1581
  end: 1639
  type: life_span
- start: 1601
  end: 1613
  type: flourished
titles: []
extra_info: []
assistant