Parse this person name:

Christa Seifert, 1513-1570, flourished 1534-1557
user
first_name: Christa
last_name: Seifert
middle_names: []
temporal:
- start: 1513
  end: 1570
  type: life_span
- start: 1534
  end: 1557
  type: flourished
titles: []
extra_info: []
assistant