Parse this person name:

Tschentscher, Karlheinz G. (Karlheinz Gertrud), 1637-1703
user
first_name: Karlheinz
last_name: Tschentscher
middle_names:
- Gertrud
temporal:
- start: 1637
  end: 1703
  type: life_span
titles: []
extra_info: []
assistant