Parse this person name:

Siegward Krause (1391-1437, flourished 1421-1432)
user
first_name: Siegward
last_name: Krause
middle_names: []
temporal:
- start: 1391
  end: 1437
  type: life_span
- start: 1421
  end: 1432
  type: flourished
titles: []
extra_info: []
assistant