Parse this person name:

Vajèn van Velthoven (1478-1554, flourished 1498-1513)
user
first_name: Vajèn
last_name: van Velthoven
middle_names: []
temporal:
- start: 1478
  end: 1554
  type: life_span
- start: 1498
  end: 1513
  type: flourished
titles: []
extra_info: []
assistant