Parse this person name:

Jelte VI (1378-1455, flourished 1408-1423)
user
first_name: Jelte
last_name: VI
middle_names: []
temporal:
- start: 1378
  end: 1455
  type: life_span
- start: 1408
  end: 1423
  type: flourished
titles: []
extra_info: []
assistant