Parse this person name:

Zbigniew Riehl, 1254-1294, flourished 1276-1287
user
first_name: Zbigniew
last_name: Riehl
middle_names: []
temporal:
- start: 1254
  end: 1294
  type: life_span
- start: 1276
  end: 1287
  type: flourished
titles: []
extra_info: []
assistant