Parse this person name:

Christopher Chavez, 1408-1469, flourished 1432-1456
user
first_name: Christopher
last_name: Chavez
middle_names: []
temporal:
- start: 1408
  end: 1469
  type: life_span
- start: 1432
  end: 1456
  type: flourished
titles: []
extra_info: []
assistant