Parse this person name:

Rowan van der Velde, 1306-1370, flourished 1329-1346
user
first_name: Rowan
last_name: van der Velde
middle_names: []
temporal:
- start: 1306
  end: 1370
  type: life_span
- start: 1329
  end: 1346
  type: flourished
titles: []
extra_info: []
assistant