Parse this person name:

Amir P. R. van Beieren, Haarlem, 1710-1747
user
first_name: Amir
last_name: van Beieren
middle_names:
- P.
- R.
temporal:
- start: 1710
  end: 1747
  type: life_span
titles: []
extra_info:
- Haarlem
assistant