Parse this person name:

Arthur Stoffelsz, 1821-1884, flourished 1846-1874
user
first_name: Arthur
last_name: Stoffelsz
middle_names: []
temporal:
- start: 1821
  end: 1884
  type: life_span
- start: 1846
  end: 1874
  type: flourished
titles: []
extra_info: []
assistant