Parse this person name:

Boris Michielsen, 1473-1538, flourished 1488-1511
user
first_name: Boris
last_name: Michielsen
middle_names: []
temporal:
- start: 1473
  end: 1538
  type: life_span
- start: 1488
  end: 1511
  type: flourished
titles: []
extra_info: []
assistant