Parse this person name:

Hildegund Stiebitz (1390-1448, flourished 1414-1431)
user
first_name: Hildegund
last_name: Stiebitz
middle_names: []
temporal:
- start: 1390
  end: 1448
  type: life_span
- start: 1414
  end: 1431
  type: flourished
titles: []
extra_info: []
assistant