Parse this person name:

Marianna Löwer, 1200-1255, flourished 1225-1241
user
first_name: Marianna
last_name: Löwer
middle_names: []
temporal:
- start: 1200
  end: 1255
  type: life_span
- start: 1225
  end: 1241
  type: flourished
titles: []
extra_info: []
assistant