Parse this person name:

Mattias Neuschäfer (1221-1275, flourished 1243-1263)
user
first_name: Mattias
last_name: Neuschäfer
middle_names: []
temporal:
- start: 1221
  end: 1275
  type: life_span
- start: 1243
  end: 1263
  type: flourished
titles: []
extra_info: []
assistant