Parse this person name:

Arnold Pärtzelt, 1812-1876, flourished 1831-1856
user
first_name: Arnold
last_name: Pärtzelt
middle_names: []
temporal:
- start: 1812
  end: 1876
  type: life_span
- start: 1831
  end: 1856
  type: flourished
titles: []
extra_info: []
assistant