Parse this person name:

Pieter Molegraaf, 1202-1262, flourished 1222-1236
user
first_name: Pieter
last_name: Molegraaf
middle_names: []
temporal:
- start: 1202
  end: 1262
  type: life_span
- start: 1222
  end: 1236
  type: flourished
titles: []
extra_info: []
assistant