Parse this person name:

Karsten Pärtzelt (1844-1906, flourished 1866-1877)
user
first_name: Karsten
last_name: Pärtzelt
middle_names: []
temporal:
- start: 1844
  end: 1906
  type: life_span
- start: 1866
  end: 1877
  type: flourished
titles: []
extra_info: []
assistant