Parse this person name:

Slingerland van Vlaanderen, Sebastiaan R. Yinthe Zeynep, 1431-1469
user
first_name: Sebastiaan
last_name: Slingerland van Vlaanderen
middle_names:
- R.
- Yinthe
- Zeynep
temporal:
- start: 1431
  end: 1469
  type: life_span
titles: []
extra_info: []
assistant