Parse this person name:

Cosme Pedrero, 1243-1284, flourished 1270-1279
user
first_name: Cosme
last_name: Pedrero
middle_names: []
temporal:
- start: 1243
  end: 1284
  type: life_span
- start: 1270
  end: 1279
  type: flourished
titles: []
extra_info: []
assistant