Parse this person name:

Istvan Tschentscher (1525-1579, flourished 1540-1563)
user
first_name: Istvan
last_name: Tschentscher
middle_names: []
temporal:
- start: 1525
  end: 1579
  type: life_span
- start: 1540
  end: 1563
  type: flourished
titles: []
extra_info: []
assistant