Parse this person name:

Julia de Smit (1207-1261, flourished 1233-1251)
user
first_name: Julia
last_name: de Smit
middle_names: []
temporal:
- start: 1207
  end: 1261
  type: life_span
- start: 1233
  end: 1251
  type: flourished
titles: []
extra_info: []
assistant