Parse this person name:

Emmanuel Regnier (1249-1301, flourished 1276-1286)
user
first_name: Emmanuel
last_name: Regnier
middle_names: []
temporal:
- start: 1249
  end: 1301
  type: life_span
- start: 1276
  end: 1286
  type: flourished
titles: []
extra_info: []
assistant