Parse this person name:

Drub Tschentscher, Pierre Aleksander Jens-Peter A., 1203-1242
user
first_name: Pierre
last_name: Drub Tschentscher
middle_names:
- Aleksander
- Jens-Peter
- A.
temporal:
- start: 1203
  end: 1242
  type: life_span
titles: []
extra_info: []
assistant