Parse this person name:

Margareta Mathilde I. Benthin, Donaueschingen, 1829-1876
user
first_name: Margareta
last_name: Benthin
middle_names:
- Mathilde
- I.
temporal:
- start: 1829
  end: 1876
  type: life_span
titles: []
extra_info:
- Donaueschingen
assistant