Parse this person name:

Mehdi A. Erdal O. R. Bärer'Wilms, died 1277
user
first_name: Mehdi
last_name: Bärer'Wilms
middle_names:
- A.
- Erdal
- O.
- R.
temporal:
- start: null
  end: 1277
  type: life_span
titles: []
extra_info: []
assistant