Parse this person name:

Birger Christoph (1444-1508, flourished 1462-1473)
user
first_name: Birger
last_name: Christoph
middle_names: []
temporal:
- start: 1444
  end: 1508
  type: life_span
- start: 1462
  end: 1473
  type: flourished
titles: []
extra_info: []
assistant