Parse this person name:

Gottfried Knappe-Löwer, 1419-1461, flourished 1434-1447
user
first_name: Gottfried
last_name: Knappe-Löwer
middle_names: []
temporal:
- start: 1419
  end: 1461
  type: life_span
- start: 1434
  end: 1447
  type: flourished
titles: []
extra_info: []
assistant