Parse this person name:

Hagen Atzler (1260-1304, flourished 1278-1290)
user
first_name: Hagen
last_name: Atzler
middle_names: []
temporal:
- start: 1260
  end: 1304
  type: life_span
- start: 1278
  end: 1290
  type: flourished
titles: []
extra_info: []
assistant