Parse this person name:

Ziegert Sager, Tilmann Frithjof Andrei Babette Herwig Frithjof Andrei Babette Herwig
user
first_name: Tilmann
last_name: Ziegert Sager
middle_names:
- Frithjof
- Andrei
- Babette
- Herwig
temporal: []
titles: []
extra_info: []
assistant