Parse this person name:

Virginia Käster (1549-1613, flourished 1574-1591)
user
first_name: Virginia
last_name: Käster
middle_names: []
temporal:
- start: 1549
  end: 1613
  type: life_span
- start: 1574
  end: 1591
  type: flourished
titles: []
extra_info: []
assistant