Parse this person name:

Bradley de Koning, 1285-1346, flourished 1313-1340
user
first_name: Bradley
last_name: de Koning
middle_names: []
temporal:
- start: 1285
  end: 1346
  type: life_span
- start: 1313
  end: 1340
  type: flourished
titles: []
extra_info: []
assistant