Parse this person name:

Stef Isabella Xavi Puk van Leuven-Rijcken, died 1475
user
first_name: Stef
last_name: van Leuven-Rijcken
middle_names:
- Isabella
- Xavi
- Puk
temporal:
- start: null
  end: 1475
  type: life_span
titles: []
extra_info: []
assistant