Parse this person name:

Brent Mia U. Karlijn Ben Sienna van Nes, Wilsum, died 1265
user
first_name: Brent
last_name: van Nes
middle_names:
- Mia
- U.
- Karlijn
- Ben
- Sienna
temporal:
- start: null
  end: 1265
  type: life_span
titles: []
extra_info:
- Wilsum
assistant