Parse this person name:

Nienke Eckhardt, 1490-1570, flourished 1513-1542
user
first_name: Nienke
last_name: Eckhardt
middle_names: []
temporal:
- start: 1490
  end: 1570
  type: life_span
- start: 1513
  end: 1542
  type: flourished
titles: []
extra_info: []
assistant