Parse this person name:

Fedde Köster, 1418-1478, flourished 1445-1473
user
first_name: Fedde
last_name: Köster
middle_names: []
temporal:
- start: 1418
  end: 1478
  type: life_span
- start: 1445
  end: 1473
  type: flourished
titles: []
extra_info: []
assistant