Parse this person name:

Xavier Dos Santos, 1527-1573, flourished 1549-1566
user
first_name: Xavier
last_name: Dos Santos
middle_names: []
temporal:
- start: 1527
  end: 1573
  type: life_span
- start: 1549
  end: 1566
  type: flourished
titles: []
extra_info: []
assistant