Parse this person name:

van Egisheim Janssen, Dani Beau A., 1226-1266
user
first_name: Dani
last_name: van Egisheim Janssen
middle_names:
- Beau
- A.
temporal:
- start: 1226
  end: 1266
  type: life_span
titles: []
extra_info: []
assistant