Parse this person name:

van der Leek van de Greef, Ayoub Pim B., 1246-1270
user
first_name: Ayoub
last_name: van der Leek van de Greef
middle_names:
- Pim
- B.
temporal:
- start: 1246
  end: 1270
  type: life_span
titles: []
extra_info: []
assistant