Parse this person name:

Étienne Léger, 1438-1510, flourished 1460-1478
user
first_name: Étienne
last_name: Léger
middle_names: []
temporal:
- start: 1438
  end: 1510
  type: life_span
- start: 1460
  end: 1478
  type: flourished
titles: []
extra_info: []
assistant