Parse this person name:

Leon Poncelet, 1517-1565, flourished 1547-1560
user
first_name: Leon
last_name: Poncelet
middle_names: []
temporal:
- start: 1517
  end: 1565
  type: life_span
- start: 1547
  end: 1560
  type: flourished
titles: []
extra_info: []
assistant