Parse this person name:

Leszek Thanel (1387-1453, flourished 1404-1419)
user
first_name: Leszek
last_name: Thanel
middle_names: []
temporal:
- start: 1387
  end: 1453
  type: life_span
- start: 1404
  end: 1419
  type: flourished
titles: []
extra_info: []
assistant