Parse this person name:

Sienna van Kasteelen (1329-1382, flourished 1345-1366)
user
first_name: Sienna
last_name: van Kasteelen
middle_names: []
temporal:
- start: 1329
  end: 1382
  type: life_span
- start: 1345
  end: 1366
  type: flourished
titles: []
extra_info: []
assistant