Parse this person name:

Olivier De Sousa (1225-1295, flourished 1252-1267)
user
first_name: Olivier
last_name: De Sousa
middle_names: []
temporal:
- start: 1225
  end: 1295
  type: life_span
- start: 1252
  end: 1267
  type: flourished
titles: []
extra_info: []
assistant