Parse this person name:

Xavier Foucher, 1685-1728, flourished 1708-1721
user
first_name: Xavier
last_name: Foucher
middle_names: []
temporal:
- start: 1685
  end: 1728
  type: life_span
- start: 1708
  end: 1721
  type: flourished
titles: []
extra_info: []
assistant