Parse this person name:

Étienne Guillon (1426-1480, flourished 1452-1475)
user
first_name: Étienne
last_name: Guillon
middle_names: []
temporal:
- start: 1426
  end: 1480
  type: life_span
- start: 1452
  end: 1475
  type: flourished
titles: []
extra_info: []
assistant