Parse this person name:

Bertha Pergande, 1692-1763, flourished 1712-1736
user
first_name: Bertha
last_name: Pergande
middle_names: []
temporal:
- start: 1692
  end: 1763
  type: life_span
- start: 1712
  end: 1736
  type: flourished
titles: []
extra_info: []
assistant