Parse this person name:

Joël van Maasgouw (1248-1320, flourished 1270-1299)
user
first_name: Joël
last_name: van Maasgouw
middle_names: []
temporal:
- start: 1248
  end: 1320
  type: life_span
- start: 1270
  end: 1299
  type: flourished
titles: []
extra_info: []
assistant