Parse this person name:

Ortrud Dietz, 1250-1292, flourished 1273-1287
user
first_name: Ortrud
last_name: Dietz
middle_names: []
temporal:
- start: 1250
  end: 1292
  type: life_span
- start: 1273
  end: 1287
  type: flourished
titles: []
extra_info: []
assistant