Parse this person name:

Margarete Käster, 1497-1558, flourished 1525-1548
user
first_name: Margarete
last_name: Käster
middle_names: []
temporal:
- start: 1497
  end: 1558
  type: life_span
- start: 1525
  end: 1548
  type: flourished
titles: []
extra_info: []
assistant