Parse this person name:

Mads Ketel (1238-1279, flourished 1255-1274)
user
first_name: Mads
last_name: Ketel
middle_names: []
temporal:
- start: 1238
  end: 1279
  type: life_span
- start: 1255
  end: 1274
  type: flourished
titles: []
extra_info: []
assistant