Parse this person name:

Diether Schönland-Austermühle (1223-1289, flourished 1248-1267)
user
first_name: Diether
last_name: Schönland-Austermühle
middle_names: []
temporal:
- start: 1223
  end: 1289
  type: life_span
- start: 1248
  end: 1267
  type: flourished
titles: []
extra_info: []
assistant