Parse this person name:

Walentina Klemt, 1207-1266, flourished 1236-1253
user
first_name: Walentina
last_name: Klemt
middle_names: []
temporal:
- start: 1207
  end: 1266
  type: life_span
- start: 1236
  end: 1253
  type: flourished
titles: []
extra_info: []
assistant