Parse this person name:

Maribel Cisneros, 1372-1450, flourished 1399-1421
user
first_name: Maribel
last_name: Cisneros
middle_names: []
temporal:
- start: 1372
  end: 1450
  type: life_span
- start: 1399
  end: 1421
  type: flourished
titles: []
extra_info: []
assistant