Parse this person name:

Heinz Dieter Gnatz'Röhricht, flourished 1754-1785, flourished 1754-1785
user
first_name: Heinz Dieter
last_name: Gnatz'Röhricht
middle_names: []
temporal:
- start: 1754
  end: 1785
  type: flourished
titles: []
extra_info: []
assistant