Parse this person name:

Bertrand Lefebvre, 1260-1330, flourished 1278-1295
user
first_name: Bertrand
last_name: Lefebvre
middle_names: []
temporal:
- start: 1260
  end: 1330
  type: life_span
- start: 1278
  end: 1295
  type: flourished
titles: []
extra_info: []
assistant