Parse this person name:

Karl-Heinrich Etzold, 1771-1837, flourished 1791-1802
user
first_name: Karl-Heinrich
last_name: Etzold
middle_names: []
temporal:
- start: 1771
  end: 1837
  type: life_span
- start: 1791
  end: 1802
  type: flourished
titles: []
extra_info: []
assistant