Parse this person name:

Siegfried Kruschwitz, 1641-1699, flourished 1665-1682
user
first_name: Siegfried
last_name: Kruschwitz
middle_names: []
temporal:
- start: 1641
  end: 1699
  type: life_span
- start: 1665
  end: 1682
  type: flourished
titles: []
extra_info: []
assistant