Parse this person name:

Ottfried Hettner'Hartung (1721-1774, flourished 1739-1767)
user
first_name: Ottfried
last_name: Hettner'Hartung
middle_names: []
temporal:
- start: 1721
  end: 1774
  type: life_span
- start: 1739
  end: 1767
  type: flourished
titles: []
extra_info: []
assistant