Parse this person name:

Denis Ebert, 1226-1303, flourished 1243-1261
user
first_name: Denis
last_name: Ebert
middle_names: []
temporal:
- start: 1226
  end: 1303
  type: life_span
- start: 1243
  end: 1261
  type: flourished
titles: []
extra_info: []
assistant