Parse this person name:

Kian Aelftrud van Wessex, 1346-1412, flourished 1372-1384
user
first_name: Kian
last_name: Aelftrud van Wessex
middle_names: []
temporal:
- start: 1346
  end: 1412
  type: life_span
- start: 1372
  end: 1384
  type: flourished
titles: []
extra_info: []
assistant