Parse this person name:

Ludmilla Walter (1224-1295, flourished 1247-1277)
user
first_name: Ludmilla
last_name: Walter
middle_names: []
temporal:
- start: 1224
  end: 1295
  type: life_span
- start: 1247
  end: 1277
  type: flourished
titles: []
extra_info: []
assistant