Parse this person name:

le Gallen Steenbeek, Fenna Koen, 1629-1700
user
first_name: Fenna
last_name: le Gallen Steenbeek
middle_names:
- Koen
temporal:
- start: 1629
  end: 1700
  type: life_span
titles: []
extra_info: []
assistant