Parse this person name:

Hans-Otto Langern, 1455-1497, flourished 1480-1492
user
first_name: Hans-Otto
last_name: Langern
middle_names: []
temporal:
- start: 1455
  end: 1497
  type: life_span
- start: 1480
  end: 1492
  type: flourished
titles: []
extra_info: []
assistant