Parse this person name:

Gianna Gritti, 1418-1466, flourished 1439-1461
user
first_name: Gianna
last_name: Gritti
middle_names: []
temporal:
- start: 1418
  end: 1466
  type: life_span
- start: 1439
  end: 1461
  type: flourished
titles: []
extra_info: []
assistant