Parse this person name:

Kunigunda Krein (1334-1398, flourished 1352-1381)
user
first_name: Kunigunda
last_name: Krein
middle_names: []
temporal:
- start: 1334
  end: 1398
  type: life_span
- start: 1352
  end: 1381
  type: flourished
titles: []
extra_info: []
assistant