Parse this person name:

Romy Heijmen (1373-1447, flourished 1398-1421)
user
first_name: Romy
last_name: Heijmen
middle_names: []
temporal:
- start: 1373
  end: 1447
  type: life_span
- start: 1398
  end: 1421
  type: flourished
titles: []
extra_info: []
assistant