Parse this person name:

Alexandrie Lejeune, 1215-1275, flourished 1240-1263
user
first_name: Alexandrie
last_name: Lejeune
middle_names: []
temporal:
- start: 1215
  end: 1275
  type: life_span
- start: 1240
  end: 1263
  type: flourished
titles: []
extra_info: []
assistant