Parse this person name:

Sonja Heydrich (1397-1474, flourished 1417-1444)
user
first_name: Sonja
last_name: Heydrich
middle_names: []
temporal:
- start: 1397
  end: 1474
  type: life_span
- start: 1417
  end: 1444
  type: flourished
titles: []
extra_info: []
assistant