Parse this person name:

Johannes Ortmann, 1237-1288, flourished 1262-1277
user
first_name: Johannes
last_name: Ortmann
middle_names: []
temporal:
- start: 1237
  end: 1288
  type: life_span
- start: 1262
  end: 1277
  type: flourished
titles: []
extra_info: []
assistant