Parse this person name:

Léon Evrard (1204-1244, flourished 1223-1239)
user
first_name: Léon
last_name: Evrard
middle_names: []
temporal:
- start: 1204
  end: 1244
  type: life_span
- start: 1223
  end: 1239
  type: flourished
titles: []
extra_info: []
assistant