Parse this person name:

Iwan Mülichen, 1428-1471, flourished 1457-1466
user
first_name: Iwan
last_name: Mülichen
middle_names: []
temporal:
- start: 1428
  end: 1471
  type: life_span
- start: 1457
  end: 1466
  type: flourished
titles: []
extra_info: []
assistant