Parse this person name:

Aelftrud van Wessex Sire, Gijs Teun, 1408-1475
user
first_name: Gijs
last_name: Aelftrud van Wessex Sire
middle_names:
- Teun
temporal:
- start: 1408
  end: 1475
  type: life_span
titles: []
extra_info: []
assistant