Parse this person name:

Koen van Hemert-Schagen (1581-1639, flourished 1601-1629)
user
first_name: Koen
last_name: van Hemert-Schagen
middle_names: []
temporal:
- start: 1581
  end: 1639
  type: life_span
- start: 1601
  end: 1629
  type: flourished
titles: []
extra_info: []
assistant