Parse this person name:

Walsteijn de Bock, Tycho Elias M. Mathijs V., 1287-1359
user
first_name: Tycho
last_name: Walsteijn de Bock
middle_names:
- Elias
- M.
- Mathijs
- V.
temporal:
- start: 1287
  end: 1359
  type: life_span
titles: []
extra_info: []
assistant