Parse this person name:

Walther Hartmann (1797-1876, flourished 1823-1836)
user
first_name: Walther
last_name: Hartmann
middle_names: []
temporal:
- start: 1797
  end: 1876
  type: life_span
- start: 1823
  end: 1836
  type: flourished
titles: []
extra_info: []
assistant