Parse this person name:

Christian Mills, 1246-1298, flourished 1264-1292
user
first_name: Christian
last_name: Mills
middle_names: []
temporal:
- start: 1246
  end: 1298
  type: life_span
- start: 1264
  end: 1292
  type: flourished
titles: []
extra_info: []
assistant