Parse this person name:

Arnulf Röhrdanz (1680-1746, flourished 1708-1720)
user
first_name: Arnulf
last_name: Röhrdanz
middle_names: []
temporal:
- start: 1680
  end: 1746
  type: life_span
- start: 1708
  end: 1720
  type: flourished
titles: []
extra_info: []
assistant