Parse this person name:

Margitta Schmidtke (1217-1263, flourished 1237-1258)
user
first_name: Margitta
last_name: Schmidtke
middle_names: []
temporal:
- start: 1217
  end: 1263
  type: life_span
- start: 1237
  end: 1258
  type: flourished
titles: []
extra_info: []
assistant