Parse this person name:

Siegrid Kruschwitz, 1419-1494, flourished 1444-1470
user
first_name: Siegrid
last_name: Kruschwitz
middle_names: []
temporal:
- start: 1419
  end: 1494
  type: life_span
- start: 1444
  end: 1470
  type: flourished
titles: []
extra_info: []
assistant