Parse this person name:

Ottmar Rosemann, 1225-1289, flourished 1242-1255
user
first_name: Ottmar
last_name: Rosemann
middle_names: []
temporal:
- start: 1225
  end: 1289
  type: life_span
- start: 1242
  end: 1255
  type: flourished
titles: []
extra_info: []
assistant