Parse this person name:

Sieglinde Oestrovsky, 1415-1456, flourished 1439-1451
user
first_name: Sieglinde
last_name: Oestrovsky
middle_names: []
temporal:
- start: 1415
  end: 1456
  type: life_span
- start: 1439
  end: 1451
  type: flourished
titles: []
extra_info: []
assistant