Parse this person name:

Siegbert Dippel (1269-1312, flourished 1290-1307)
user
first_name: Siegbert
last_name: Dippel
middle_names: []
temporal:
- start: 1269
  end: 1312
  type: life_span
- start: 1290
  end: 1307
  type: flourished
titles: []
extra_info: []
assistant