Parse this person name:

Graaf Fenne Totwiller, Sint Geertruid, 1469-1512
user
first_name: Fenne
last_name: Totwiller
middle_names: []
temporal:
- start: 1469
  end: 1512
  type: life_span
titles:
- Graaf
extra_info:
- Sint Geertruid
assistant