Parse this person name:

Antonia Koch II (1401-1470, flourished 1428-1456)
user
first_name: Antonia
last_name: Koch II
middle_names: []
temporal:
- start: 1401
  end: 1470
  type: life_span
- start: 1428
  end: 1456
  type: flourished
titles: []
extra_info: []
assistant