Parse this person name:

Hans-Otto Römer (1202-1277, flourished 1223-1244)
user
first_name: Hans-Otto
last_name: Römer
middle_names: []
temporal:
- start: 1202
  end: 1277
  type: life_span
- start: 1223
  end: 1244
  type: flourished
titles: []
extra_info: []
assistant