Parse this person name:

Ehlert van der Veiver, Julian I. X. Vigo Brian, 1926-1976
user
first_name: Julian
last_name: Ehlert van der Veiver
middle_names:
- I.
- X.
- Vigo
- Brian
temporal:
- start: 1926
  end: 1976
  type: life_span
titles: []
extra_info: []
assistant