Parse this person name:

Alexandrie Stéphane Gallet-Lagarde, Sainte Huguesdan, 1230-1270
user
first_name: Alexandrie
last_name: Gallet-Lagarde
middle_names:
- Stéphane
temporal:
- start: 1230
  end: 1270
  type: life_span
titles: []
extra_info:
- Sainte Huguesdan
assistant